89749960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72379}}^1$

素因数の和:72421

約数の個数: 32

約数和(自身を含む): 208454400

約数和(自身を除く): 118704440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 72379, 144758, 289516, 361895, 579032, 723790, 1447580, 2243749, 2895160, 4487498, 8974996, 11218745, 17949992, 22437490, 44874980, 89749960]

約数ペア:

[(1, 89749960), (2, 44874980), (4, 22437490), (5, 17949992), (8, 11218745), (10, 8974996), (20, 4487498), (31, 2895160), (40, 2243749), (62, 1447580), (124, 723790), (155, 579032), (248, 361895), (310, 289516), (620, 144758), (1240, 72379)]