12878390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:477

約数の個数: 64

約数和(自身を含む): 29168640

約数和(自身を除く): 16290250

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 35, 38, 46, 70, 95, 115, 133, 161, 190, 230, 266, 322, 421, 437, 665, 805, 842, 874, 1330, 1610, 2105, 2185, 2947, 3059, 4210, 4370, 5894, 6118, 7999, 9683, 14735, 15295, 15998, 19366, 29470, 30590, 39995, 48415, 55993, 67781, 79990, 96830, 111986, 135562, 183977, 279965, 338905, 367954, 559930, 677810, 919885, 1287839, 1839770, 2575678, 6439195, 12878390]

約数ペア:

[(1, 12878390), (2, 6439195), (5, 2575678), (7, 1839770), (10, 1287839), (14, 919885), (19, 677810), (23, 559930), (35, 367954), (38, 338905), (46, 279965), (70, 183977), (95, 135562), (115, 111986), (133, 96830), (161, 79990), (190, 67781), (230, 55993), (266, 48415), (322, 39995), (421, 30590), (437, 29470), (665, 19366), (805, 15998), (842, 15295), (874, 14735), (1330, 9683), (1610, 7999), (2105, 6118), (2185, 5894), (2947, 4370), (3059, 4210)]