635147990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{19867}}^1$

素因数の和:20036

約数の個数: 32

約数和(自身を含む): 1201616640

約数和(自身を除く): 566468650

約数列:

[1, 2, 5, 10, 23, 46, 115, 139, 230, 278, 695, 1390, 3197, 6394, 15985, 19867, 31970, 39734, 99335, 198670, 456941, 913882, 2284705, 2761513, 4569410, 5523026, 13807565, 27615130, 63514799, 127029598, 317573995, 635147990]

約数ペア:

[(1, 635147990), (2, 317573995), (5, 127029598), (10, 63514799), (23, 27615130), (46, 13807565), (115, 5523026), (139, 4569410), (230, 2761513), (278, 2284705), (695, 913882), (1390, 456941), (3197, 198670), (6394, 99335), (15985, 39734), (19867, 31970)]