17818960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{617}}^1$

素因数の和:668

約数の個数: 60

約数和(自身を含む): 43795188

約数和(自身を除く): 25976228

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 617, 722, 760, 1234, 1444, 1520, 1805, 2468, 2888, 3085, 3610, 4936, 5776, 6170, 7220, 9872, 11723, 12340, 14440, 23446, 24680, 28880, 46892, 49360, 58615, 93784, 117230, 187568, 222737, 234460, 445474, 468920, 890948, 937840, 1113685, 1781896, 2227370, 3563792, 4454740, 8909480, 17818960]

約数ペア:

[(1, 17818960), (2, 8909480), (4, 4454740), (5, 3563792), (8, 2227370), (10, 1781896), (16, 1113685), (19, 937840), (20, 890948), (38, 468920), (40, 445474), (76, 234460), (80, 222737), (95, 187568), (152, 117230), (190, 93784), (304, 58615), (361, 49360), (380, 46892), (617, 28880), (722, 24680), (760, 23446), (1234, 14440), (1444, 12340), (1520, 11723), (1805, 9872), (2468, 7220), (2888, 6170), (3085, 5776), (3610, 4936)]