40507880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{144671}}^1$

素因数の和:144689

約数の個数: 32

約数和(自身を含む): 104163840

約数和(自身を除く): 63655960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 144671, 289342, 578684, 723355, 1012697, 1157368, 1446710, 2025394, 2893420, 4050788, 5063485, 5786840, 8101576, 10126970, 20253940, 40507880]

約数ペア:

[(1, 40507880), (2, 20253940), (4, 10126970), (5, 8101576), (7, 5786840), (8, 5063485), (10, 4050788), (14, 2893420), (20, 2025394), (28, 1446710), (35, 1157368), (40, 1012697), (56, 723355), (70, 578684), (140, 289342), (280, 144671)]