661326540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11839}}^1$

素因数の和:11884

約数の個数: 144

約数和(自身を含む): 2267596800

約数和(自身を除く): 1606270260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 532, 570, 588, 665, 735, 798, 931, 980, 1140, 1330, 1470, 1596, 1862, 1995, 2660, 2793, 2940, 3724, 3990, 4655, 5586, 7980, 9310, 11172, 11839, 13965, 18620, 23678, 27930, 35517, 47356, 55860, 59195, 71034, 82873, 118390, 142068, 165746, 177585, 224941, 236780, 248619, 331492, 355170, 414365, 449882, 497238, 580111, 674823, 710340, 828730, 899764, 994476, 1124705, 1160222, 1243095, 1349646, 1574587, 1657460, 1740333, 2249410, 2320444, 2486190, 2699292, 2900555, 3149174, 3374115, 3480666, 4498820, 4723761, 4972380, 5801110, 6298348, 6748230, 6961332, 7872935, 8701665, 9447522, 11022109, 11602220, 13496460, 15745870, 17403330, 18895044, 22044218, 23618805, 31491740, 33066327, 34806660, 44088436, 47237610, 55110545, 66132654, 94475220, 110221090, 132265308, 165331635, 220442180, 330663270, 661326540]

約数ペア:

[(1, 661326540), (2, 330663270), (3, 220442180), (4, 165331635), (5, 132265308), (6, 110221090), (7, 94475220), (10, 66132654), (12, 55110545), (14, 47237610), (15, 44088436), (19, 34806660), (20, 33066327), (21, 31491740), (28, 23618805), (30, 22044218), (35, 18895044), (38, 17403330), (42, 15745870), (49, 13496460), (57, 11602220), (60, 11022109), (70, 9447522), (76, 8701665), (84, 7872935), (95, 6961332), (98, 6748230), (105, 6298348), (114, 5801110), (133, 4972380), (140, 4723761), (147, 4498820), (190, 3480666), (196, 3374115), (210, 3149174), (228, 2900555), (245, 2699292), (266, 2486190), (285, 2320444), (294, 2249410), (380, 1740333), (399, 1657460), (420, 1574587), (490, 1349646), (532, 1243095), (570, 1160222), (588, 1124705), (665, 994476), (735, 899764), (798, 828730), (931, 710340), (980, 674823), (1140, 580111), (1330, 497238), (1470, 449882), (1596, 414365), (1862, 355170), (1995, 331492), (2660, 248619), (2793, 236780), (2940, 224941), (3724, 177585), (3990, 165746), (4655, 142068), (5586, 118390), (7980, 82873), (9310, 71034), (11172, 59195), (11839, 55860), (13965, 47356), (18620, 35517), (23678, 27930)]