157747840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7951}}^1$

素因数の和:8001

約数の個数: 64

約数和(自身を含む): 389329920

約数和(自身を除く): 231582080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 7951, 9920, 15902, 19840, 31804, 39755, 63608, 79510, 127216, 159020, 246481, 254432, 318040, 492962, 508864, 636080, 985924, 1017728, 1232405, 1272160, 1971848, 2464810, 2544320, 3943696, 4929620, 5088640, 7887392, 9859240, 15774784, 19718480, 31549568, 39436960, 78873920, 157747840]

約数ペア:

[(1, 157747840), (2, 78873920), (4, 39436960), (5, 31549568), (8, 19718480), (10, 15774784), (16, 9859240), (20, 7887392), (31, 5088640), (32, 4929620), (40, 3943696), (62, 2544320), (64, 2464810), (80, 1971848), (124, 1272160), (128, 1232405), (155, 1017728), (160, 985924), (248, 636080), (310, 508864), (320, 492962), (496, 318040), (620, 254432), (640, 246481), (992, 159020), (1240, 127216), (1984, 79510), (2480, 63608), (3968, 39755), (4960, 31804), (7951, 19840), (9920, 15902)]