20199492080

素因数分解:

$2^4\times 5^1\times {\mathrm{8689}}^1\times {\mathrm{29059}}^1$

素因数の和:37761

約数の個数: 40

約数和(自身を含む): 46970840400

約数和(自身を除く): 26771348320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8689, 17378, 29059, 34756, 43445, 58118, 69512, 86890, 116236, 139024, 145295, 173780, 232472, 290590, 347560, 464944, 581180, 695120, 1162360, 2324720, 252493651, 504987302, 1009974604, 1262468255, 2019949208, 2524936510, 4039898416, 5049873020, 10099746040, 20199492080]

約数ペア:

[(1, 20199492080), (2, 10099746040), (4, 5049873020), (5, 4039898416), (8, 2524936510), (10, 2019949208), (16, 1262468255), (20, 1009974604), (40, 504987302), (80, 252493651), (8689, 2324720), (17378, 1162360), (29059, 695120), (34756, 581180), (43445, 464944), (58118, 347560), (69512, 290590), (86890, 232472), (116236, 173780), (139024, 145295)]