64719760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115571}}^1$

素因数の和:115591

約数の個数: 40

約数和(自身を含む): 171971136

約数和(自身を除く): 107251376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115571, 231142, 462284, 577855, 808997, 924568, 1155710, 1617994, 1849136, 2311420, 3235988, 4044985, 4622840, 6471976, 8089970, 9245680, 12943952, 16179940, 32359880, 64719760]

約数ペア:

[(1, 64719760), (2, 32359880), (4, 16179940), (5, 12943952), (7, 9245680), (8, 8089970), (10, 6471976), (14, 4622840), (16, 4044985), (20, 3235988), (28, 2311420), (35, 1849136), (40, 1617994), (56, 1155710), (70, 924568), (80, 808997), (112, 577855), (140, 462284), (280, 231142), (560, 115571)]