87131940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{207457}}^1$

素因数の和:207476

約数の個数: 48

約数和(自身を含む): 278823552

約数和(自身を除く): 191691612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 207457, 414914, 622371, 829828, 1037285, 1244742, 1452199, 2074570, 2489484, 2904398, 3111855, 4149140, 4356597, 5808796, 6223710, 7260995, 8713194, 12447420, 14521990, 17426388, 21782985, 29043980, 43565970, 87131940]

約数ペア:

[(1, 87131940), (2, 43565970), (3, 29043980), (4, 21782985), (5, 17426388), (6, 14521990), (7, 12447420), (10, 8713194), (12, 7260995), (14, 6223710), (15, 5808796), (20, 4356597), (21, 4149140), (28, 3111855), (30, 2904398), (35, 2489484), (42, 2074570), (60, 1452199), (70, 1244742), (84, 1037285), (105, 829828), (140, 622371), (210, 414914), (420, 207457)]