642000940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{655103}}^1$

素因数の和:655126

約数の個数: 36

約数和(自身を含む): 1568318976

約数和(自身を除く): 926318036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 655103, 1310206, 2620412, 3275515, 4585721, 6551030, 9171442, 13102060, 18342884, 22928605, 32100047, 45857210, 64200094, 91714420, 128400188, 160500235, 321000470, 642000940]

約数ペア:

[(1, 642000940), (2, 321000470), (4, 160500235), (5, 128400188), (7, 91714420), (10, 64200094), (14, 45857210), (20, 32100047), (28, 22928605), (35, 18342884), (49, 13102060), (70, 9171442), (98, 6551030), (140, 4585721), (196, 3275515), (245, 2620412), (490, 1310206), (980, 655103)]