81931980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4567}}^1$

素因数の和:4615

約数の個数: 96

約数和(自身を含む): 257854464

約数和(自身を除く): 175922484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 115, 130, 138, 156, 195, 230, 260, 276, 299, 345, 390, 460, 598, 690, 780, 897, 1196, 1380, 1495, 1794, 2990, 3588, 4485, 4567, 5980, 8970, 9134, 13701, 17940, 18268, 22835, 27402, 45670, 54804, 59371, 68505, 91340, 105041, 118742, 137010, 178113, 210082, 237484, 274020, 296855, 315123, 356226, 420164, 525205, 593710, 630246, 712452, 890565, 1050410, 1187420, 1260492, 1365533, 1575615, 1781130, 2100820, 2731066, 3151230, 3562260, 4096599, 5462132, 6302460, 6827665, 8193198, 13655330, 16386396, 20482995, 27310660, 40965990, 81931980]

約数ペア:

[(1, 81931980), (2, 40965990), (3, 27310660), (4, 20482995), (5, 16386396), (6, 13655330), (10, 8193198), (12, 6827665), (13, 6302460), (15, 5462132), (20, 4096599), (23, 3562260), (26, 3151230), (30, 2731066), (39, 2100820), (46, 1781130), (52, 1575615), (60, 1365533), (65, 1260492), (69, 1187420), (78, 1050410), (92, 890565), (115, 712452), (130, 630246), (138, 593710), (156, 525205), (195, 420164), (230, 356226), (260, 315123), (276, 296855), (299, 274020), (345, 237484), (390, 210082), (460, 178113), (598, 137010), (690, 118742), (780, 105041), (897, 91340), (1196, 68505), (1380, 59371), (1495, 54804), (1794, 45670), (2990, 27402), (3588, 22835), (4485, 18268), (4567, 17940), (5980, 13701), (8970, 9134)]