61815920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{9781}}^1$

素因数の和:9873

約数の個数: 40

約数和(自身を含む): 145556160

約数和(自身を除く): 83740240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 9781, 19562, 39124, 48905, 78248, 97810, 156496, 195620, 391240, 772699, 782480, 1545398, 3090796, 3863495, 6181592, 7726990, 12363184, 15453980, 30907960, 61815920]

約数ペア:

[(1, 61815920), (2, 30907960), (4, 15453980), (5, 12363184), (8, 7726990), (10, 6181592), (16, 3863495), (20, 3090796), (40, 1545398), (79, 782480), (80, 772699), (158, 391240), (316, 195620), (395, 156496), (632, 97810), (790, 78248), (1264, 48905), (1580, 39124), (3160, 19562), (6320, 9781)]