20187870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7561}}^1$

素因数の和:7660

約数の個数: 32

約数和(自身を含む): 49001760

約数和(自身を除く): 28813890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 7561, 15122, 22683, 37805, 45366, 75610, 113415, 226830, 672929, 1345858, 2018787, 3364645, 4037574, 6729290, 10093935, 20187870]

約数ペア:

[(1, 20187870), (2, 10093935), (3, 6729290), (5, 4037574), (6, 3364645), (10, 2018787), (15, 1345858), (30, 672929), (89, 226830), (178, 113415), (267, 75610), (445, 45366), (534, 37805), (890, 22683), (1335, 15122), (2670, 7561)]