20266760920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72381289}}^1$

素因数の和:72381307

約数の個数: 32

約数和(自身を含む): 52114528800

約数和(自身を除く): 31847767880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72381289, 144762578, 289525156, 361906445, 506669023, 579050312, 723812890, 1013338046, 1447625780, 2026676092, 2533345115, 2895251560, 4053352184, 5066690230, 10133380460, 20266760920]

約数ペア:

[(1, 20266760920), (2, 10133380460), (4, 5066690230), (5, 4053352184), (7, 2895251560), (8, 2533345115), (10, 2026676092), (14, 1447625780), (20, 1013338046), (28, 723812890), (35, 579050312), (40, 506669023), (56, 361906445), (70, 289525156), (140, 144762578), (280, 72381289)]