40397560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20611}}^1$

素因数の和:20636

約数の個数: 48

約数和(自身を含む): 105739560

約数和(自身を除く): 65342000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 20611, 41222, 82444, 103055, 144277, 164888, 206110, 288554, 412220, 577108, 721385, 824440, 1009939, 1154216, 1442770, 2019878, 2885540, 4039756, 5049695, 5771080, 8079512, 10099390, 20198780, 40397560]

約数ペア:

[(1, 40397560), (2, 20198780), (4, 10099390), (5, 8079512), (7, 5771080), (8, 5049695), (10, 4039756), (14, 2885540), (20, 2019878), (28, 1442770), (35, 1154216), (40, 1009939), (49, 824440), (56, 721385), (70, 577108), (98, 412220), (140, 288554), (196, 206110), (245, 164888), (280, 144277), (392, 103055), (490, 82444), (980, 41222), (1960, 20611)]