87788380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{709}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 190370880

約数和(自身を除く): 102582500

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 151, 164, 205, 302, 410, 604, 709, 755, 820, 1418, 1510, 2836, 3020, 3545, 6191, 7090, 12382, 14180, 24764, 29069, 30955, 58138, 61910, 107059, 116276, 123820, 145345, 214118, 290690, 428236, 535295, 581380, 1070590, 2141180, 4389419, 8778838, 17557676, 21947095, 43894190, 87788380]

約数ペア:

[(1, 87788380), (2, 43894190), (4, 21947095), (5, 17557676), (10, 8778838), (20, 4389419), (41, 2141180), (82, 1070590), (151, 581380), (164, 535295), (205, 428236), (302, 290690), (410, 214118), (604, 145345), (709, 123820), (755, 116276), (820, 107059), (1418, 61910), (1510, 58138), (2836, 30955), (3020, 29069), (3545, 24764), (6191, 14180), (7090, 12382)]