81207728

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15427}}^1$

素因数の和:15489

約数の個数: 40

約数和(自身を含む): 183654912

約数和(自身を除く): 102447184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 5264, 15427, 30854, 61708, 107989, 123416, 215978, 246832, 431956, 725069, 863912, 1450138, 1727824, 2900276, 5075483, 5800552, 10150966, 11601104, 20301932, 40603864, 81207728]

約数ペア:

[(1, 81207728), (2, 40603864), (4, 20301932), (7, 11601104), (8, 10150966), (14, 5800552), (16, 5075483), (28, 2900276), (47, 1727824), (56, 1450138), (94, 863912), (112, 725069), (188, 431956), (329, 246832), (376, 215978), (658, 123416), (752, 107989), (1316, 61708), (2632, 30854), (5264, 15427)]