163955740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{13417}}^1$

素因数の和:13486

約数の個数: 48

約数和(自身を含む): 378709632

約数和(自身を除く): 214753892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 3055, 6110, 12220, 13417, 26834, 53668, 67085, 134170, 174421, 268340, 348842, 630599, 697684, 872105, 1261198, 1744210, 2522396, 3152995, 3488420, 6305990, 8197787, 12611980, 16395574, 32791148, 40988935, 81977870, 163955740]

約数ペア:

[(1, 163955740), (2, 81977870), (4, 40988935), (5, 32791148), (10, 16395574), (13, 12611980), (20, 8197787), (26, 6305990), (47, 3488420), (52, 3152995), (65, 2522396), (94, 1744210), (130, 1261198), (188, 872105), (235, 697684), (260, 630599), (470, 348842), (611, 268340), (940, 174421), (1222, 134170), (2444, 67085), (3055, 53668), (6110, 26834), (12220, 13417)]