66756560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{64189}}^1$

素因数の和:64215

約数の個数: 40

約数和(自身を含む): 167150760

約数和(自身を除く): 100394200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 64189, 128378, 256756, 320945, 513512, 641890, 834457, 1027024, 1283780, 1668914, 2567560, 3337828, 4172285, 5135120, 6675656, 8344570, 13351312, 16689140, 33378280, 66756560]

約数ペア:

[(1, 66756560), (2, 33378280), (4, 16689140), (5, 13351312), (8, 8344570), (10, 6675656), (13, 5135120), (16, 4172285), (20, 3337828), (26, 2567560), (40, 1668914), (52, 1283780), (65, 1027024), (80, 834457), (104, 641890), (130, 513512), (208, 320945), (260, 256756), (520, 128378), (1040, 64189)]