721132010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{38917}}^1$

素因数の和:39050

約数の個数: 32

約数和(自身を含む): 1387037520

約数和(自身を除く): 665905510

約数列:

[1, 2, 5, 10, 17, 34, 85, 109, 170, 218, 545, 1090, 1853, 3706, 9265, 18530, 38917, 77834, 194585, 389170, 661589, 1323178, 3307945, 4241953, 6615890, 8483906, 21209765, 42419530, 72113201, 144226402, 360566005, 721132010]

約数ペア:

[(1, 721132010), (2, 360566005), (5, 144226402), (10, 72113201), (17, 42419530), (34, 21209765), (85, 8483906), (109, 6615890), (170, 4241953), (218, 3307945), (545, 1323178), (1090, 661589), (1853, 389170), (3706, 194585), (9265, 77834), (18530, 38917)]