81825520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{146117}}^1$

素因数の和:146137

約数の個数: 40

約数和(自身を含む): 217423584

約数和(自身を除く): 135598064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 146117, 292234, 584468, 730585, 1022819, 1168936, 1461170, 2045638, 2337872, 2922340, 4091276, 5114095, 5844680, 8182552, 10228190, 11689360, 16365104, 20456380, 40912760, 81825520]

約数ペア:

[(1, 81825520), (2, 40912760), (4, 20456380), (5, 16365104), (7, 11689360), (8, 10228190), (10, 8182552), (14, 5844680), (16, 5114095), (20, 4091276), (28, 2922340), (35, 2337872), (40, 2045638), (56, 1461170), (70, 1168936), (80, 1022819), (112, 730585), (140, 584468), (280, 292234), (560, 146117)]