64028560

素因数分解:

$2^4\times 5^1\times {\mathrm{800357}}^1$

素因数の和:800370

約数の個数: 20

約数和(自身を含む): 148866588

約数和(自身を除く): 84838028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 800357, 1600714, 3201428, 4001785, 6402856, 8003570, 12805712, 16007140, 32014280, 64028560]

約数ペア:

[(1, 64028560), (2, 32014280), (4, 16007140), (5, 12805712), (8, 8003570), (10, 6402856), (16, 4001785), (20, 3201428), (40, 1600714), (80, 800357)]