261023490

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:226

約数の個数: 288

約数和(自身を含む): 885109680

約数和(自身を除く): 624086190

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 29, 30, 35, 39, 42, 45, 49, 58, 63, 65, 70, 78, 87, 90, 91, 98, 105, 117, 126, 130, 145, 147, 157, 174, 182, 195, 203, 210, 234, 245, 261, 273, 290, 294, 314, 315, 377, 390, 406, 435, 441, 455, 471, 490, 522, 546, 585, 609, 630, 637, 735, 754, 785, 819, 870, 882, 910, 942, 1015, 1099, 1131, 1170, 1218, 1274, 1305, 1365, 1413, 1421, 1470, 1570, 1638, 1827, 1885, 1911, 2030, 2041, 2198, 2205, 2262, 2355, 2610, 2639, 2730, 2826, 2842, 3045, 3185, 3297, 3393, 3654, 3770, 3822, 4082, 4095, 4263, 4410, 4553, 4710, 5278, 5495, 5655, 5733, 6090, 6123, 6370, 6594, 6786, 7065, 7105, 7693, 7917, 8190, 8526, 9106, 9135, 9555, 9891, 10205, 10990, 11310, 11466, 12246, 12789, 13195, 13659, 14130, 14210, 14287, 15386, 15834, 16485, 16965, 18270, 18369, 18473, 19110, 19782, 20410, 21315, 22765, 23079, 23751, 25578, 26390, 27318, 28574, 28665, 30615, 31871, 32970, 33930, 36738, 36946, 38465, 39585, 40977, 42630, 42861, 45530, 46158, 47502, 49455, 55419, 57330, 59189, 61230, 63742, 63945, 68295, 69237, 71435, 76930, 79170, 81954, 85722, 91845, 92365, 95613, 98910, 100009, 110838, 115395, 118378, 118755, 127890, 128583, 136590, 138474, 142870, 159355, 166257, 177567, 183690, 184730, 191226, 200018, 204885, 214305, 223097, 230790, 237510, 257166, 277095, 286839, 295945, 300027, 318710, 332514, 346185, 355134, 409770, 414323, 428610, 446194, 478065, 500045, 532701, 554190, 573678, 591890, 600054, 642915, 669291, 692370, 828646, 831285, 887835, 900081, 956130, 1000090, 1065402, 1115485, 1242969, 1285830, 1338582, 1434195, 1500135, 1662570, 1775670, 1800162, 2007873, 2071615, 2230970, 2485938, 2663505, 2868390, 2900261, 3000270, 3346455, 3728907, 4015746, 4143230, 4500405, 5327010, 5800522, 6214845, 6692910, 7457814, 8700783, 9000810, 10039365, 12429690, 14501305, 17401566, 18644535, 20078730, 26102349, 29002610, 37289070, 43503915, 52204698, 87007830, 130511745, 261023490]

約数ペア:

[(1, 261023490), (2, 130511745), (3, 87007830), (5, 52204698), (6, 43503915), (7, 37289070), (9, 29002610), (10, 26102349), (13, 20078730), (14, 18644535), (15, 17401566), (18, 14501305), (21, 12429690), (26, 10039365), (29, 9000810), (30, 8700783), (35, 7457814), (39, 6692910), (42, 6214845), (45, 5800522), (49, 5327010), (58, 4500405), (63, 4143230), (65, 4015746), (70, 3728907), (78, 3346455), (87, 3000270), (90, 2900261), (91, 2868390), (98, 2663505), (105, 2485938), (117, 2230970), (126, 2071615), (130, 2007873), (145, 1800162), (147, 1775670), (157, 1662570), (174, 1500135), (182, 1434195), (195, 1338582), (203, 1285830), (210, 1242969), (234, 1115485), (245, 1065402), (261, 1000090), (273, 956130), (290, 900081), (294, 887835), (314, 831285), (315, 828646), (377, 692370), (390, 669291), (406, 642915), (435, 600054), (441, 591890), (455, 573678), (471, 554190), (490, 532701), (522, 500045), (546, 478065), (585, 446194), (609, 428610), (630, 414323), (637, 409770), (735, 355134), (754, 346185), (785, 332514), (819, 318710), (870, 300027), (882, 295945), (910, 286839), (942, 277095), (1015, 257166), (1099, 237510), (1131, 230790), (1170, 223097), (1218, 214305), (1274, 204885), (1305, 200018), (1365, 191226), (1413, 184730), (1421, 183690), (1470, 177567), (1570, 166257), (1638, 159355), (1827, 142870), (1885, 138474), (1911, 136590), (2030, 128583), (2041, 127890), (2198, 118755), (2205, 118378), (2262, 115395), (2355, 110838), (2610, 100009), (2639, 98910), (2730, 95613), (2826, 92365), (2842, 91845), (3045, 85722), (3185, 81954), (3297, 79170), (3393, 76930), (3654, 71435), (3770, 69237), (3822, 68295), (4082, 63945), (4095, 63742), (4263, 61230), (4410, 59189), (4553, 57330), (4710, 55419), (5278, 49455), (5495, 47502), (5655, 46158), (5733, 45530), (6090, 42861), (6123, 42630), (6370, 40977), (6594, 39585), (6786, 38465), (7065, 36946), (7105, 36738), (7693, 33930), (7917, 32970), (8190, 31871), (8526, 30615), (9106, 28665), (9135, 28574), (9555, 27318), (9891, 26390), (10205, 25578), (10990, 23751), (11310, 23079), (11466, 22765), (12246, 21315), (12789, 20410), (13195, 19782), (13659, 19110), (14130, 18473), (14210, 18369), (14287, 18270), (15386, 16965), (15834, 16485)]