20216647540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3583}}^1\times {\mathrm{5323}}^1$

素因数の和:8968

約数の個数: 48

約数和(自身を含む): 43276197888

約数和(自身を除く): 23059550348

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 3583, 5323, 7166, 10646, 14332, 17915, 21292, 26615, 35830, 53230, 71660, 106460, 189899, 282119, 379798, 564238, 759596, 949495, 1128476, 1410595, 1898990, 2821190, 3797980, 5642380, 19072309, 38144618, 76289236, 95361545, 190723090, 381446180, 1010832377, 2021664754, 4043329508, 5054161885, 10108323770, 20216647540]

約数ペア:

[(1, 20216647540), (2, 10108323770), (4, 5054161885), (5, 4043329508), (10, 2021664754), (20, 1010832377), (53, 381446180), (106, 190723090), (212, 95361545), (265, 76289236), (530, 38144618), (1060, 19072309), (3583, 5642380), (5323, 3797980), (7166, 2821190), (10646, 1898990), (14332, 1410595), (17915, 1128476), (21292, 949495), (26615, 759596), (35830, 564238), (53230, 379798), (71660, 282119), (106460, 189899)]