17850523990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1997}}^1\times {\mathrm{2371}}^1$

素因数の和:4417

約数の個数: 64

約数和(自身を含む): 35828775360

約数和(自身を除く): 17978251370

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 1997, 2371, 3770, 3994, 4742, 9985, 11855, 19970, 23710, 25961, 30823, 51922, 57913, 61646, 68759, 115826, 129805, 137518, 154115, 259610, 289565, 308230, 343795, 579130, 687590, 752869, 893867, 1505738, 1787734, 3764345, 4469335, 4734887, 7528690, 8938670, 9469774, 23674435, 47348870, 61553531, 123107062, 137311723, 274623446, 307767655, 615535310, 686558615, 1373117230, 1785052399, 3570104798, 8925261995, 17850523990]

約数ペア:

[(1, 17850523990), (2, 8925261995), (5, 3570104798), (10, 1785052399), (13, 1373117230), (26, 686558615), (29, 615535310), (58, 307767655), (65, 274623446), (130, 137311723), (145, 123107062), (290, 61553531), (377, 47348870), (754, 23674435), (1885, 9469774), (1997, 8938670), (2371, 7528690), (3770, 4734887), (3994, 4469335), (4742, 3764345), (9985, 1787734), (11855, 1505738), (19970, 893867), (23710, 752869), (25961, 687590), (30823, 579130), (51922, 343795), (57913, 308230), (61646, 289565), (68759, 259610), (115826, 154115), (129805, 137518)]