397599694840

素因数分解:

$2^3\times 5^1\times {\mathrm{78101}}^1\times {\mathrm{127271}}^1$

素因数の和:205383

約数の個数: 32

約数和(自身を含む): 894617796960

約数和(自身を除く): 497018102120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 78101, 127271, 156202, 254542, 312404, 390505, 509084, 624808, 636355, 781010, 1018168, 1272710, 1562020, 2545420, 3124040, 5090840, 9939992371, 19879984742, 39759969484, 49699961855, 79519938968, 99399923710, 198799847420, 397599694840]

約数ペア:

[(1, 397599694840), (2, 198799847420), (4, 99399923710), (5, 79519938968), (8, 49699961855), (10, 39759969484), (20, 19879984742), (40, 9939992371), (78101, 5090840), (127271, 3124040), (156202, 2545420), (254542, 1562020), (312404, 1272710), (390505, 1018168), (509084, 781010), (624808, 636355)]