81317340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:137

約数の個数: 288

約数和(自身を含む): 293529600

約数和(自身を除く): 212212260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 31, 36, 38, 39, 45, 52, 57, 59, 60, 62, 65, 76, 78, 90, 93, 95, 114, 117, 118, 124, 130, 155, 156, 171, 177, 180, 186, 190, 195, 228, 234, 236, 247, 260, 279, 285, 295, 310, 342, 354, 372, 380, 390, 403, 465, 468, 494, 531, 558, 570, 585, 589, 590, 620, 684, 708, 741, 767, 780, 806, 855, 885, 930, 988, 1062, 1116, 1121, 1140, 1170, 1178, 1180, 1209, 1235, 1395, 1482, 1534, 1612, 1710, 1767, 1770, 1829, 1860, 2015, 2124, 2223, 2242, 2301, 2340, 2356, 2418, 2470, 2655, 2790, 2945, 2964, 3068, 3363, 3420, 3534, 3540, 3627, 3658, 3705, 3835, 4030, 4446, 4484, 4602, 4836, 4940, 5301, 5310, 5487, 5580, 5605, 5890, 6045, 6726, 6903, 7068, 7254, 7316, 7410, 7657, 7670, 8060, 8835, 8892, 9145, 9204, 10089, 10602, 10620, 10974, 11115, 11210, 11505, 11780, 12090, 13452, 13806, 14508, 14573, 14820, 15314, 15340, 16461, 16815, 17670, 18135, 18290, 20178, 21204, 21948, 22230, 22420, 22971, 23010, 23777, 24180, 26505, 27435, 27612, 29146, 30628, 32922, 33630, 34515, 34751, 35340, 36270, 36580, 38285, 40356, 43719, 44460, 45942, 46020, 47554, 50445, 53010, 54870, 58292, 65844, 67260, 68913, 69030, 69502, 71331, 72540, 72865, 76570, 82305, 87438, 91884, 95108, 100890, 104253, 106020, 109740, 114855, 118885, 131157, 137826, 138060, 139004, 142662, 145730, 153140, 164610, 173755, 174876, 201780, 208506, 213993, 218595, 229710, 237770, 262314, 275652, 285324, 291460, 312759, 329220, 344565, 347510, 356655, 417012, 427986, 437190, 451763, 459420, 475540, 521265, 524628, 625518, 655785, 689130, 695020, 713310, 855972, 874380, 903526, 1042530, 1069965, 1251036, 1311570, 1355289, 1378260, 1426620, 1563795, 1807052, 2085060, 2139930, 2258815, 2623140, 2710578, 3127590, 4065867, 4279860, 4517630, 5421156, 6255180, 6776445, 8131734, 9035260, 13552890, 16263468, 20329335, 27105780, 40658670, 81317340]

約数ペア:

[(1, 81317340), (2, 40658670), (3, 27105780), (4, 20329335), (5, 16263468), (6, 13552890), (9, 9035260), (10, 8131734), (12, 6776445), (13, 6255180), (15, 5421156), (18, 4517630), (19, 4279860), (20, 4065867), (26, 3127590), (30, 2710578), (31, 2623140), (36, 2258815), (38, 2139930), (39, 2085060), (45, 1807052), (52, 1563795), (57, 1426620), (59, 1378260), (60, 1355289), (62, 1311570), (65, 1251036), (76, 1069965), (78, 1042530), (90, 903526), (93, 874380), (95, 855972), (114, 713310), (117, 695020), (118, 689130), (124, 655785), (130, 625518), (155, 524628), (156, 521265), (171, 475540), (177, 459420), (180, 451763), (186, 437190), (190, 427986), (195, 417012), (228, 356655), (234, 347510), (236, 344565), (247, 329220), (260, 312759), (279, 291460), (285, 285324), (295, 275652), (310, 262314), (342, 237770), (354, 229710), (372, 218595), (380, 213993), (390, 208506), (403, 201780), (465, 174876), (468, 173755), (494, 164610), (531, 153140), (558, 145730), (570, 142662), (585, 139004), (589, 138060), (590, 137826), (620, 131157), (684, 118885), (708, 114855), (741, 109740), (767, 106020), (780, 104253), (806, 100890), (855, 95108), (885, 91884), (930, 87438), (988, 82305), (1062, 76570), (1116, 72865), (1121, 72540), (1140, 71331), (1170, 69502), (1178, 69030), (1180, 68913), (1209, 67260), (1235, 65844), (1395, 58292), (1482, 54870), (1534, 53010), (1612, 50445), (1710, 47554), (1767, 46020), (1770, 45942), (1829, 44460), (1860, 43719), (2015, 40356), (2124, 38285), (2223, 36580), (2242, 36270), (2301, 35340), (2340, 34751), (2356, 34515), (2418, 33630), (2470, 32922), (2655, 30628), (2790, 29146), (2945, 27612), (2964, 27435), (3068, 26505), (3363, 24180), (3420, 23777), (3534, 23010), (3540, 22971), (3627, 22420), (3658, 22230), (3705, 21948), (3835, 21204), (4030, 20178), (4446, 18290), (4484, 18135), (4602, 17670), (4836, 16815), (4940, 16461), (5301, 15340), (5310, 15314), (5487, 14820), (5580, 14573), (5605, 14508), (5890, 13806), (6045, 13452), (6726, 12090), (6903, 11780), (7068, 11505), (7254, 11210), (7316, 11115), (7410, 10974), (7657, 10620), (7670, 10602), (8060, 10089), (8835, 9204), (8892, 9145)]