16638490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{419}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 34564320

約数和(自身を除く): 17925830

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 361, 418, 419, 722, 838, 1045, 1805, 2090, 2095, 3610, 3971, 4190, 4609, 7942, 7961, 9218, 15922, 19855, 23045, 39710, 39805, 46090, 79610, 87571, 151259, 175142, 302518, 437855, 756295, 875710, 1512590, 1663849, 3327698, 8319245, 16638490]

約数ペア:

[(1, 16638490), (2, 8319245), (5, 3327698), (10, 1663849), (11, 1512590), (19, 875710), (22, 756295), (38, 437855), (55, 302518), (95, 175142), (110, 151259), (190, 87571), (209, 79610), (361, 46090), (418, 39805), (419, 39710), (722, 23045), (838, 19855), (1045, 15922), (1805, 9218), (2090, 7961), (2095, 7942), (3610, 4609), (3971, 4190)]