20115578

素因数分解:

$2^1\times 7^4\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 40

約数和(自身を含む): 36300960

約数和(自身を除く): 16185382

約数列:

[1, 2, 7, 14, 49, 59, 71, 98, 118, 142, 343, 413, 497, 686, 826, 994, 2401, 2891, 3479, 4189, 4802, 5782, 6958, 8378, 20237, 24353, 29323, 40474, 48706, 58646, 141659, 170471, 205261, 283318, 340942, 410522, 1436827, 2873654, 10057789, 20115578]

約数ペア:

[(1, 20115578), (2, 10057789), (7, 2873654), (14, 1436827), (49, 410522), (59, 340942), (71, 283318), (98, 205261), (118, 170471), (142, 141659), (343, 58646), (413, 48706), (497, 40474), (686, 29323), (826, 24353), (994, 20237), (2401, 8378), (2891, 6958), (3479, 5782), (4189, 4802)]