20512373985

素因数分解:

$3^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{210157}}^1$

素因数の和:210415

約数の個数: 40

約数和(自身を含む): 36923079336

約数和(自身を除く): 16410705351

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 241, 405, 723, 1205, 2169, 3615, 6507, 10845, 19521, 32535, 97605, 210157, 630471, 1050785, 1891413, 3152355, 5674239, 9457065, 17022717, 28371195, 50647837, 85113585, 151943511, 253239185, 455830533, 759717555, 1367491599, 2279152665, 4102474797, 6837457995, 20512373985]

約数ペア:

[(1, 20512373985), (3, 6837457995), (5, 4102474797), (9, 2279152665), (15, 1367491599), (27, 759717555), (45, 455830533), (81, 253239185), (135, 151943511), (241, 85113585), (405, 50647837), (723, 28371195), (1205, 17022717), (2169, 9457065), (3615, 5674239), (6507, 3152355), (10845, 1891413), (19521, 1050785), (32535, 630471), (97605, 210157)]