20915264

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:291

約数の個数: 56

約数和(自身を含む): 43891200

約数和(自身を除く): 22975936

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 59, 64, 116, 118, 191, 232, 236, 382, 464, 472, 764, 928, 944, 1528, 1711, 1856, 1888, 3056, 3422, 3776, 5539, 6112, 6844, 11078, 11269, 12224, 13688, 22156, 22538, 27376, 44312, 45076, 54752, 88624, 90152, 109504, 177248, 180304, 326801, 354496, 360608, 653602, 721216, 1307204, 2614408, 5228816, 10457632, 20915264]

約数ペア:

[(1, 20915264), (2, 10457632), (4, 5228816), (8, 2614408), (16, 1307204), (29, 721216), (32, 653602), (58, 360608), (59, 354496), (64, 326801), (116, 180304), (118, 177248), (191, 109504), (232, 90152), (236, 88624), (382, 54752), (464, 45076), (472, 44312), (764, 27376), (928, 22538), (944, 22156), (1528, 13688), (1711, 12224), (1856, 11269), (1888, 11078), (3056, 6844), (3422, 6112), (3776, 5539)]