53333020

素因数分解:

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

素因数の和:575

約数の個数: 72

約数和(自身を含む): 125435520

約数和(自身を除く): 72102500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 509, 620, 676, 806, 845, 1018, 1612, 1690, 2015, 2036, 2545, 3380, 4030, 5090, 5239, 6617, 8060, 10180, 10478, 13234, 15779, 20956, 26195, 26468, 31558, 33085, 52390, 63116, 66170, 78895, 86021, 104780, 132340, 157790, 172042, 205127, 315580, 344084, 410254, 430105, 820508, 860210, 1025635, 1720420, 2051270, 2666651, 4102540, 5333302, 10666604, 13333255, 26666510, 53333020]

約数ペア:

[(1, 53333020), (2, 26666510), (4, 13333255), (5, 10666604), (10, 5333302), (13, 4102540), (20, 2666651), (26, 2051270), (31, 1720420), (52, 1025635), (62, 860210), (65, 820508), (124, 430105), (130, 410254), (155, 344084), (169, 315580), (260, 205127), (310, 172042), (338, 157790), (403, 132340), (509, 104780), (620, 86021), (676, 78895), (806, 66170), (845, 63116), (1018, 52390), (1612, 33085), (1690, 31558), (2015, 26468), (2036, 26195), (2545, 20956), (3380, 15779), (4030, 13234), (5090, 10478), (5239, 10180), (6617, 8060)]