20227790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 43623360

約数和(自身を除く): 23395570

約数列:

[1, 2, 5, 10, 11, 17, 22, 29, 34, 55, 58, 85, 110, 145, 170, 187, 290, 319, 373, 374, 493, 638, 746, 935, 986, 1595, 1865, 1870, 2465, 3190, 3730, 4103, 4930, 5423, 6341, 8206, 10817, 10846, 12682, 20515, 21634, 27115, 31705, 41030, 54085, 54230, 63410, 69751, 108170, 118987, 139502, 183889, 237974, 348755, 367778, 594935, 697510, 919445, 1189870, 1838890, 2022779, 4045558, 10113895, 20227790]

約数ペア:

[(1, 20227790), (2, 10113895), (5, 4045558), (10, 2022779), (11, 1838890), (17, 1189870), (22, 919445), (29, 697510), (34, 594935), (55, 367778), (58, 348755), (85, 237974), (110, 183889), (145, 139502), (170, 118987), (187, 108170), (290, 69751), (319, 63410), (373, 54230), (374, 54085), (493, 41030), (638, 31705), (746, 27115), (935, 21634), (986, 20515), (1595, 12682), (1865, 10846), (1870, 10817), (2465, 8206), (3190, 6341), (3730, 5423), (4103, 4930)]