20815676930

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1789}}^1\times {\mathrm{27059}}^1$

素因数の和:28898

約数の個数: 32

約数和(自身を含む): 38362420800

約数和(自身を除く): 17546743870

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 1789, 3578, 8945, 17890, 27059, 54118, 76927, 135295, 153854, 270590, 384635, 769270, 1163537, 2327074, 5817685, 11635370, 48408551, 96817102, 242042755, 484085510, 2081567693, 4163135386, 10407838465, 20815676930]

約数ペア:

[(1, 20815676930), (2, 10407838465), (5, 4163135386), (10, 2081567693), (43, 484085510), (86, 242042755), (215, 96817102), (430, 48408551), (1789, 11635370), (3578, 5817685), (8945, 2327074), (17890, 1163537), (27059, 769270), (54118, 384635), (76927, 270590), (135295, 153854)]