65799920

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2011}}^1$

素因数の和:2433

約数の個数: 40

約数和(自身を含む): 153435120

約数和(自身を除く): 87635200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2011, 2045, 3272, 4022, 4090, 6544, 8044, 8180, 10055, 16088, 16360, 20110, 32176, 32720, 40220, 80440, 160880, 822499, 1644998, 3289996, 4112495, 6579992, 8224990, 13159984, 16449980, 32899960, 65799920]

約数ペア:

[(1, 65799920), (2, 32899960), (4, 16449980), (5, 13159984), (8, 8224990), (10, 6579992), (16, 4112495), (20, 3289996), (40, 1644998), (80, 822499), (409, 160880), (818, 80440), (1636, 40220), (2011, 32720), (2045, 32176), (3272, 20110), (4022, 16360), (4090, 16088), (6544, 10055), (8044, 8180)]