209917890

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:142

約数の個数: 288

約数和(自身を含む): 718937856

約数和(自身を除く): 509019966

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 19, 21, 26, 30, 35, 38, 39, 42, 45, 57, 63, 65, 70, 71, 78, 90, 91, 95, 105, 114, 117, 126, 130, 133, 142, 171, 182, 190, 195, 210, 213, 234, 247, 266, 273, 285, 315, 342, 355, 361, 390, 399, 426, 455, 494, 497, 546, 570, 585, 630, 639, 665, 710, 722, 741, 798, 819, 855, 910, 923, 994, 1065, 1083, 1170, 1197, 1235, 1278, 1330, 1349, 1365, 1482, 1491, 1638, 1710, 1729, 1805, 1846, 1995, 2130, 2166, 2223, 2394, 2470, 2485, 2527, 2698, 2730, 2769, 2982, 3195, 3249, 3458, 3610, 3705, 3990, 4047, 4095, 4446, 4473, 4615, 4693, 4970, 5054, 5187, 5415, 5538, 5985, 6390, 6461, 6498, 6745, 7410, 7455, 7581, 8094, 8190, 8307, 8645, 8946, 9230, 9386, 9443, 10374, 10830, 11115, 11970, 12141, 12635, 12922, 13490, 13845, 14079, 14910, 15162, 15561, 16245, 16614, 17290, 17537, 18886, 19383, 20235, 22230, 22365, 22743, 23465, 24282, 25270, 25631, 25935, 27690, 28158, 28329, 31122, 32305, 32490, 32851, 35074, 37905, 38766, 40470, 41535, 42237, 44730, 45486, 46930, 47215, 51262, 51870, 52611, 56658, 58149, 60705, 64610, 65702, 70395, 75810, 76893, 77805, 83070, 84474, 84987, 87685, 94430, 96915, 98553, 105222, 113715, 116298, 121410, 122759, 128155, 140790, 141645, 153786, 155610, 157833, 164255, 169974, 175370, 179417, 193830, 197106, 211185, 227430, 230679, 245518, 256310, 263055, 283290, 290745, 295659, 315666, 328510, 333203, 358834, 368277, 384465, 422370, 424935, 461358, 492765, 526110, 538251, 581490, 591318, 613795, 666406, 736554, 768930, 789165, 849870, 897085, 985530, 999609, 1076502, 1104831, 1153395, 1227590, 1478295, 1578330, 1614753, 1666015, 1794170, 1841385, 1999218, 2209662, 2306790, 2332421, 2691255, 2956590, 2998827, 3229506, 3332030, 3682770, 4664842, 4998045, 5382510, 5524155, 5997654, 6997263, 8073765, 9996090, 11048310, 11662105, 13994526, 14994135, 16147530, 20991789, 23324210, 29988270, 34986315, 41983578, 69972630, 104958945, 209917890]

約数ペア:

[(1, 209917890), (2, 104958945), (3, 69972630), (5, 41983578), (6, 34986315), (7, 29988270), (9, 23324210), (10, 20991789), (13, 16147530), (14, 14994135), (15, 13994526), (18, 11662105), (19, 11048310), (21, 9996090), (26, 8073765), (30, 6997263), (35, 5997654), (38, 5524155), (39, 5382510), (42, 4998045), (45, 4664842), (57, 3682770), (63, 3332030), (65, 3229506), (70, 2998827), (71, 2956590), (78, 2691255), (90, 2332421), (91, 2306790), (95, 2209662), (105, 1999218), (114, 1841385), (117, 1794170), (126, 1666015), (130, 1614753), (133, 1578330), (142, 1478295), (171, 1227590), (182, 1153395), (190, 1104831), (195, 1076502), (210, 999609), (213, 985530), (234, 897085), (247, 849870), (266, 789165), (273, 768930), (285, 736554), (315, 666406), (342, 613795), (355, 591318), (361, 581490), (390, 538251), (399, 526110), (426, 492765), (455, 461358), (494, 424935), (497, 422370), (546, 384465), (570, 368277), (585, 358834), (630, 333203), (639, 328510), (665, 315666), (710, 295659), (722, 290745), (741, 283290), (798, 263055), (819, 256310), (855, 245518), (910, 230679), (923, 227430), (994, 211185), (1065, 197106), (1083, 193830), (1170, 179417), (1197, 175370), (1235, 169974), (1278, 164255), (1330, 157833), (1349, 155610), (1365, 153786), (1482, 141645), (1491, 140790), (1638, 128155), (1710, 122759), (1729, 121410), (1805, 116298), (1846, 113715), (1995, 105222), (2130, 98553), (2166, 96915), (2223, 94430), (2394, 87685), (2470, 84987), (2485, 84474), (2527, 83070), (2698, 77805), (2730, 76893), (2769, 75810), (2982, 70395), (3195, 65702), (3249, 64610), (3458, 60705), (3610, 58149), (3705, 56658), (3990, 52611), (4047, 51870), (4095, 51262), (4446, 47215), (4473, 46930), (4615, 45486), (4693, 44730), (4970, 42237), (5054, 41535), (5187, 40470), (5415, 38766), (5538, 37905), (5985, 35074), (6390, 32851), (6461, 32490), (6498, 32305), (6745, 31122), (7410, 28329), (7455, 28158), (7581, 27690), (8094, 25935), (8190, 25631), (8307, 25270), (8645, 24282), (8946, 23465), (9230, 22743), (9386, 22365), (9443, 22230), (10374, 20235), (10830, 19383), (11115, 18886), (11970, 17537), (12141, 17290), (12635, 16614), (12922, 16245), (13490, 15561), (13845, 15162), (14079, 14910)]