381745840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{681689}}^1$

素因数の和:681709

約数の個数: 40

約数和(自身を含む): 1014354720

約数和(自身を除く): 632608880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 681689, 1363378, 2726756, 3408445, 4771823, 5453512, 6816890, 9543646, 10907024, 13633780, 19087292, 23859115, 27267560, 38174584, 47718230, 54535120, 76349168, 95436460, 190872920, 381745840]

約数ペア:

[(1, 381745840), (2, 190872920), (4, 95436460), (5, 76349168), (7, 54535120), (8, 47718230), (10, 38174584), (14, 27267560), (16, 23859115), (20, 19087292), (28, 13633780), (35, 10907024), (40, 9543646), (56, 6816890), (70, 5453512), (80, 4771823), (112, 3408445), (140, 2726756), (280, 1363378), (560, 681689)]