20112390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5197}}^1$

素因数の和:5253

約数の個数: 48

約数和(自身を含む): 53518608

約数和(自身を除く): 33406218

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5197, 10394, 15591, 25985, 31182, 46773, 51970, 77955, 93546, 155910, 223471, 233865, 446942, 467730, 670413, 1117355, 1340826, 2011239, 2234710, 3352065, 4022478, 6704130, 10056195, 20112390]

約数ペア:

[(1, 20112390), (2, 10056195), (3, 6704130), (5, 4022478), (6, 3352065), (9, 2234710), (10, 2011239), (15, 1340826), (18, 1117355), (30, 670413), (43, 467730), (45, 446942), (86, 233865), (90, 223471), (129, 155910), (215, 93546), (258, 77955), (387, 51970), (430, 46773), (645, 31182), (774, 25985), (1290, 15591), (1935, 10394), (3870, 5197)]