173620520

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{12437}}^1$

素因数の和:12797

約数の個数: 32

約数和(自身を含む): 391797000

約数和(自身を除く): 218176480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 12437, 13960, 24874, 49748, 62185, 99496, 124370, 248740, 497480, 4340513, 8681026, 17362052, 21702565, 34724104, 43405130, 86810260, 173620520]

約数ペア:

[(1, 173620520), (2, 86810260), (4, 43405130), (5, 34724104), (8, 21702565), (10, 17362052), (20, 8681026), (40, 4340513), (349, 497480), (698, 248740), (1396, 124370), (1745, 99496), (2792, 62185), (3490, 49748), (6980, 24874), (12437, 13960)]