20742497880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13296473}}^1$

素因数の和:13296500

約数の個数: 64

約数和(自身を含む): 67014228960

約数和(自身を除く): 46271731080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13296473, 26592946, 39889419, 53185892, 66482365, 79778838, 106371784, 132964730, 159557676, 172854149, 199447095, 265929460, 319115352, 345708298, 398894190, 518562447, 531858920, 691416596, 797788380, 864270745, 1037124894, 1382833192, 1595576760, 1728541490, 2074249788, 2592812235, 3457082980, 4148499576, 5185624470, 6914165960, 10371248940, 20742497880]

約数ペア:

[(1, 20742497880), (2, 10371248940), (3, 6914165960), (4, 5185624470), (5, 4148499576), (6, 3457082980), (8, 2592812235), (10, 2074249788), (12, 1728541490), (13, 1595576760), (15, 1382833192), (20, 1037124894), (24, 864270745), (26, 797788380), (30, 691416596), (39, 531858920), (40, 518562447), (52, 398894190), (60, 345708298), (65, 319115352), (78, 265929460), (104, 199447095), (120, 172854149), (130, 159557676), (156, 132964730), (195, 106371784), (260, 79778838), (312, 66482365), (390, 53185892), (520, 39889419), (780, 26592946), (1560, 13296473)]