20123248575

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{132761}}^1$

素因数の和:132864

約数の個数: 48

約数和(自身を含む): 34768774656

約数和(自身を除く): 14645526081

約数列:

[1, 3, 5, 15, 25, 43, 47, 75, 129, 141, 215, 235, 645, 705, 1075, 1175, 2021, 3225, 3525, 6063, 10105, 30315, 50525, 132761, 151575, 398283, 663805, 1991415, 3319025, 5708723, 6239767, 9957075, 17126169, 18719301, 28543615, 31198835, 85630845, 93596505, 142718075, 155994175, 268309981, 428154225, 467982525, 804929943, 1341549905, 4024649715, 6707749525, 20123248575]

約数ペア:

[(1, 20123248575), (3, 6707749525), (5, 4024649715), (15, 1341549905), (25, 804929943), (43, 467982525), (47, 428154225), (75, 268309981), (129, 155994175), (141, 142718075), (215, 93596505), (235, 85630845), (645, 31198835), (705, 28543615), (1075, 18719301), (1175, 17126169), (2021, 9957075), (3225, 6239767), (3525, 5708723), (6063, 3319025), (10105, 1991415), (30315, 663805), (50525, 398283), (132761, 151575)]