80795920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32579}}^1$

素因数の和:32623

約数の個数: 40

約数和(自身を含む): 193916160

約数和(自身を除く): 113120240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 32579, 65158, 130316, 162895, 260632, 325790, 521264, 651580, 1009949, 1303160, 2019898, 2606320, 4039796, 5049745, 8079592, 10099490, 16159184, 20198980, 40397960, 80795920]

約数ペア:

[(1, 80795920), (2, 40397960), (4, 20198980), (5, 16159184), (8, 10099490), (10, 8079592), (16, 5049745), (20, 4039796), (31, 2606320), (40, 2019898), (62, 1303160), (80, 1009949), (124, 651580), (155, 521264), (248, 325790), (310, 260632), (496, 162895), (620, 130316), (1240, 65158), (2480, 32579)]