388964412

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{3539}}^1$

素因数の和:3663

約数の個数: 72

約数和(自身を含む): 1020539520

約数和(自身を除く): 631575108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 71, 86, 129, 142, 172, 213, 258, 284, 387, 426, 516, 639, 774, 852, 1278, 1548, 2556, 3053, 3539, 6106, 7078, 9159, 10617, 12212, 14156, 18318, 21234, 27477, 31851, 36636, 42468, 54954, 63702, 109908, 127404, 152177, 251269, 304354, 456531, 502538, 608708, 753807, 913062, 1005076, 1369593, 1507614, 1826124, 2261421, 2739186, 3015228, 4522842, 5478372, 9045684, 10804567, 21609134, 32413701, 43218268, 64827402, 97241103, 129654804, 194482206, 388964412]

約数ペア:

[(1, 388964412), (2, 194482206), (3, 129654804), (4, 97241103), (6, 64827402), (9, 43218268), (12, 32413701), (18, 21609134), (36, 10804567), (43, 9045684), (71, 5478372), (86, 4522842), (129, 3015228), (142, 2739186), (172, 2261421), (213, 1826124), (258, 1507614), (284, 1369593), (387, 1005076), (426, 913062), (516, 753807), (639, 608708), (774, 502538), (852, 456531), (1278, 304354), (1548, 251269), (2556, 152177), (3053, 127404), (3539, 109908), (6106, 63702), (7078, 54954), (9159, 42468), (10617, 36636), (12212, 31851), (14156, 27477), (18318, 21234)]