80431360

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2027}}^1$

素因数の和:2079

約数の個数: 72

約数和(自身を含む): 198971136

約数和(自身を除く): 118539776

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, 2027, 2480, 3968, 4054, 4960, 7936, 8108, 9920, 10135, 16216, 19840, 20270, 32432, 39680, 40540, 62837, 64864, 81080, 125674, 129728, 162160, 251348, 259456, 314185, 324320, 502696, 518912, 628370, 648640, 1005392, 1256740, 1297280, 2010784, 2513480, 2594560, 4021568, 5026960, 8043136, 10053920, 16086272, 20107840, 40215680, 80431360]

約数ペア:

[(1, 80431360), (2, 40215680), (4, 20107840), (5, 16086272), (8, 10053920), (10, 8043136), (16, 5026960), (20, 4021568), (31, 2594560), (32, 2513480), (40, 2010784), (62, 1297280), (64, 1256740), (80, 1005392), (124, 648640), (128, 628370), (155, 518912), (160, 502696), (248, 324320), (256, 314185), (310, 259456), (320, 251348), (496, 162160), (620, 129728), (640, 125674), (992, 81080), (1240, 64864), (1280, 62837), (1984, 40540), (2027, 39680), (2480, 32432), (3968, 20270), (4054, 19840), (4960, 16216), (7936, 10135), (8108, 9920)]