64213840

素因数分解:

$2^4\times 5^1\times {\mathrm{853}}^1\times {\mathrm{941}}^1$

素因数の和:1807

約数の個数: 40

約数和(自身を含む): 149631048

約数和(自身を除く): 85417208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 853, 941, 1706, 1882, 3412, 3764, 4265, 4705, 6824, 7528, 8530, 9410, 13648, 15056, 17060, 18820, 34120, 37640, 68240, 75280, 802673, 1605346, 3210692, 4013365, 6421384, 8026730, 12842768, 16053460, 32106920, 64213840]

約数ペア:

[(1, 64213840), (2, 32106920), (4, 16053460), (5, 12842768), (8, 8026730), (10, 6421384), (16, 4013365), (20, 3210692), (40, 1605346), (80, 802673), (853, 75280), (941, 68240), (1706, 37640), (1882, 34120), (3412, 18820), (3764, 17060), (4265, 15056), (4705, 13648), (6824, 9410), (7528, 8530)]