549763160

素因数分解:

$2^3\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{6917}}^1$

素因数の和:8915

約数の個数: 32

約数和(自身を含む): 1237768560

約数和(自身を除く): 688005400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1987, 3974, 6917, 7948, 9935, 13834, 15896, 19870, 27668, 34585, 39740, 55336, 69170, 79480, 138340, 276680, 13744079, 27488158, 54976316, 68720395, 109952632, 137440790, 274881580, 549763160]

約数ペア:

[(1, 549763160), (2, 274881580), (4, 137440790), (5, 109952632), (8, 68720395), (10, 54976316), (20, 27488158), (40, 13744079), (1987, 276680), (3974, 138340), (6917, 79480), (7948, 69170), (9935, 55336), (13834, 39740), (15896, 34585), (19870, 27668)]