391049820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{310357}}^1$

素因数の和:310379

約数の個数: 72

約数和(自身を含む): 1355643744

約数和(自身を除く): 964593924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 310357, 620714, 931071, 1241428, 1551785, 1862142, 2172499, 2793213, 3103570, 3724284, 4344998, 4655355, 5586426, 6207140, 6517497, 8689996, 9310710, 10862495, 11172852, 13034994, 13966065, 18621420, 19552491, 21724990, 26069988, 27932130, 32587485, 39104982, 43449980, 55864260, 65174970, 78209964, 97762455, 130349940, 195524910, 391049820]

約数ペア:

[(1, 391049820), (2, 195524910), (3, 130349940), (4, 97762455), (5, 78209964), (6, 65174970), (7, 55864260), (9, 43449980), (10, 39104982), (12, 32587485), (14, 27932130), (15, 26069988), (18, 21724990), (20, 19552491), (21, 18621420), (28, 13966065), (30, 13034994), (35, 11172852), (36, 10862495), (42, 9310710), (45, 8689996), (60, 6517497), (63, 6207140), (70, 5586426), (84, 4655355), (90, 4344998), (105, 3724284), (126, 3103570), (140, 2793213), (180, 2172499), (210, 1862142), (252, 1551785), (315, 1241428), (420, 931071), (630, 620714), (1260, 310357)]