8205080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 20563200

約数和(自身を除く): 12358120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 509, 520, 620, 806, 1018, 1240, 1612, 2015, 2036, 2545, 3224, 4030, 4072, 5090, 6617, 8060, 10180, 13234, 15779, 16120, 20360, 26468, 31558, 33085, 52936, 63116, 66170, 78895, 126232, 132340, 157790, 205127, 264680, 315580, 410254, 631160, 820508, 1025635, 1641016, 2051270, 4102540, 8205080]

約数ペア:

[(1, 8205080), (2, 4102540), (4, 2051270), (5, 1641016), (8, 1025635), (10, 820508), (13, 631160), (20, 410254), (26, 315580), (31, 264680), (40, 205127), (52, 157790), (62, 132340), (65, 126232), (104, 78895), (124, 66170), (130, 63116), (155, 52936), (248, 33085), (260, 31558), (310, 26468), (403, 20360), (509, 16120), (520, 15779), (620, 13234), (806, 10180), (1018, 8060), (1240, 6617), (1612, 5090), (2015, 4072), (2036, 4030), (2545, 3224)]