20346340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7649}}^1$

素因数の和:7684

約数の個数: 48

約数和(自身を含む): 51408000

約数和(自身を除く): 31061660

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7649, 15298, 30596, 38245, 53543, 76490, 107086, 145331, 152980, 214172, 267715, 290662, 535430, 581324, 726655, 1017317, 1070860, 1453310, 2034634, 2906620, 4069268, 5086585, 10173170, 20346340]

約数ペア:

[(1, 20346340), (2, 10173170), (4, 5086585), (5, 4069268), (7, 2906620), (10, 2034634), (14, 1453310), (19, 1070860), (20, 1017317), (28, 726655), (35, 581324), (38, 535430), (70, 290662), (76, 267715), (95, 214172), (133, 152980), (140, 145331), (190, 107086), (266, 76490), (380, 53543), (532, 38245), (665, 30596), (1330, 15298), (2660, 7649)]