20188090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1871}}^1$

素因数の和:1974

約数の個数: 32

約数和(自身を含む): 39626496

約数和(自身を除く): 19438406

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 1871, 2158, 3742, 5395, 9355, 10790, 18710, 24323, 48646, 121615, 155293, 243230, 310586, 776465, 1552930, 2018809, 4037618, 10094045, 20188090]

約数ペア:

[(1, 20188090), (2, 10094045), (5, 4037618), (10, 2018809), (13, 1552930), (26, 776465), (65, 310586), (83, 243230), (130, 155293), (166, 121615), (415, 48646), (830, 24323), (1079, 18710), (1871, 10790), (2158, 9355), (3742, 5395)]