78867320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281669}}^1$

素因数の和:281687

約数の個数: 32

約数和(自身を含む): 202802400

約数和(自身を除く): 123935080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281669, 563338, 1126676, 1408345, 1971683, 2253352, 2816690, 3943366, 5633380, 7886732, 9858415, 11266760, 15773464, 19716830, 39433660, 78867320]

約数ペア:

[(1, 78867320), (2, 39433660), (4, 19716830), (5, 15773464), (7, 11266760), (8, 9858415), (10, 7886732), (14, 5633380), (20, 3943366), (28, 2816690), (35, 2253352), (40, 1971683), (56, 1408345), (70, 1126676), (140, 563338), (280, 281669)]