18403220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3637}}^1$

素因数の和:3680

約数の個数: 48

約数和(自身を含む): 44005248

約数和(自身を除く): 25602028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 3637, 5060, 7274, 14548, 18185, 36370, 40007, 72740, 80014, 83651, 160028, 167302, 200035, 334604, 400070, 418255, 800140, 836510, 920161, 1673020, 1840322, 3680644, 4600805, 9201610, 18403220]

約数ペア:

[(1, 18403220), (2, 9201610), (4, 4600805), (5, 3680644), (10, 1840322), (11, 1673020), (20, 920161), (22, 836510), (23, 800140), (44, 418255), (46, 400070), (55, 334604), (92, 200035), (110, 167302), (115, 160028), (220, 83651), (230, 80014), (253, 72740), (460, 40007), (506, 36370), (1012, 18185), (1265, 14548), (2530, 7274), (3637, 5060)]