622989880

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{31981}}^1$

素因数の和:32479

約数の個数: 32

約数和(自身を含む): 1404649440

約数和(自身を除く): 781659560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 9740, 19480, 31981, 63962, 127924, 159905, 255848, 319810, 639620, 1279240, 15574747, 31149494, 62298988, 77873735, 124597976, 155747470, 311494940, 622989880]

約数ペア:

[(1, 622989880), (2, 311494940), (4, 155747470), (5, 124597976), (8, 77873735), (10, 62298988), (20, 31149494), (40, 15574747), (487, 1279240), (974, 639620), (1948, 319810), (2435, 255848), (3896, 159905), (4870, 127924), (9740, 63962), (19480, 31981)]