72878660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3019}}^1$

素因数の和:3116

約数の個数: 48

約数和(自身を含む): 164384640

約数和(自身を除く): 91505980

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1207, 1420, 2414, 3019, 4828, 6035, 6038, 12070, 12076, 15095, 24140, 30190, 51323, 60380, 102646, 205292, 214349, 256615, 428698, 513230, 857396, 1026460, 1071745, 2143490, 3643933, 4286980, 7287866, 14575732, 18219665, 36439330, 72878660]

約数ペア:

[(1, 72878660), (2, 36439330), (4, 18219665), (5, 14575732), (10, 7287866), (17, 4286980), (20, 3643933), (34, 2143490), (68, 1071745), (71, 1026460), (85, 857396), (142, 513230), (170, 428698), (284, 256615), (340, 214349), (355, 205292), (710, 102646), (1207, 60380), (1420, 51323), (2414, 30190), (3019, 24140), (4828, 15095), (6035, 12076), (6038, 12070)]