64781560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{95267}}^1$

素因数の和:95295

約数の個数: 32

約数和(自身を含む): 154334160

約数和(自身を除く): 89552600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 95267, 190534, 381068, 476335, 762136, 952670, 1619539, 1905340, 3239078, 3810680, 6478156, 8097695, 12956312, 16195390, 32390780, 64781560]

約数ペア:

[(1, 64781560), (2, 32390780), (4, 16195390), (5, 12956312), (8, 8097695), (10, 6478156), (17, 3810680), (20, 3239078), (34, 1905340), (40, 1619539), (68, 952670), (85, 762136), (136, 476335), (170, 381068), (340, 190534), (680, 95267)]