80419780

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:666

約数の個数: 96

約数和(自身を含む): 207648000

約数和(自身を除く): 127228220

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 343, 380, 490, 532, 617, 665, 686, 931, 980, 1234, 1330, 1372, 1715, 1862, 2468, 2660, 3085, 3430, 3724, 4319, 4655, 6170, 6517, 6860, 8638, 9310, 11723, 12340, 13034, 17276, 18620, 21595, 23446, 26068, 30233, 32585, 43190, 46892, 58615, 60466, 65170, 82061, 86380, 117230, 120932, 130340, 151165, 164122, 211631, 234460, 302330, 328244, 410305, 423262, 574427, 604660, 820610, 846524, 1058155, 1148854, 1641220, 2116310, 2297708, 2872135, 4020989, 4232620, 5744270, 8041978, 11488540, 16083956, 20104945, 40209890, 80419780]

約数ペア:

[(1, 80419780), (2, 40209890), (4, 20104945), (5, 16083956), (7, 11488540), (10, 8041978), (14, 5744270), (19, 4232620), (20, 4020989), (28, 2872135), (35, 2297708), (38, 2116310), (49, 1641220), (70, 1148854), (76, 1058155), (95, 846524), (98, 820610), (133, 604660), (140, 574427), (190, 423262), (196, 410305), (245, 328244), (266, 302330), (343, 234460), (380, 211631), (490, 164122), (532, 151165), (617, 130340), (665, 120932), (686, 117230), (931, 86380), (980, 82061), (1234, 65170), (1330, 60466), (1372, 58615), (1715, 46892), (1862, 43190), (2468, 32585), (2660, 30233), (3085, 26068), (3430, 23446), (3724, 21595), (4319, 18620), (4655, 17276), (6170, 13034), (6517, 12340), (6860, 11723), (8638, 9310)]