315495680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7951}}^1$

素因数の和:8003

約数の個数: 72

約数和(自身を含む): 780186624

約数和(自身を除く): 464690944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 7951, 9920, 15902, 19840, 31804, 39680, 39755, 63608, 79510, 127216, 159020, 246481, 254432, 318040, 492962, 508864, 636080, 985924, 1017728, 1232405, 1272160, 1971848, 2035456, 2464810, 2544320, 3943696, 4929620, 5088640, 7887392, 9859240, 10177280, 15774784, 19718480, 31549568, 39436960, 63099136, 78873920, 157747840, 315495680]

約数ペア:

[(1, 315495680), (2, 157747840), (4, 78873920), (5, 63099136), (8, 39436960), (10, 31549568), (16, 19718480), (20, 15774784), (31, 10177280), (32, 9859240), (40, 7887392), (62, 5088640), (64, 4929620), (80, 3943696), (124, 2544320), (128, 2464810), (155, 2035456), (160, 1971848), (248, 1272160), (256, 1232405), (310, 1017728), (320, 985924), (496, 636080), (620, 508864), (640, 492962), (992, 318040), (1240, 254432), (1280, 246481), (1984, 159020), (2480, 127216), (3968, 79510), (4960, 63608), (7936, 39755), (7951, 39680), (9920, 31804), (15902, 19840)]