20382320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2141}}^1$

素因数の和:2178

約数の個数: 80

約数和(自身を含む): 57371328

約数和(自身を除く): 36989008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2141, 2380, 4282, 4760, 8564, 9520, 10705, 14987, 17128, 21410, 29974, 34256, 36397, 42820, 59948, 72794, 74935, 85640, 119896, 145588, 149870, 171280, 181985, 239792, 254779, 291176, 299740, 363970, 509558, 582352, 599480, 727940, 1019116, 1198960, 1273895, 1455880, 2038232, 2547790, 2911760, 4076464, 5095580, 10191160, 20382320]

約数ペア:

[(1, 20382320), (2, 10191160), (4, 5095580), (5, 4076464), (7, 2911760), (8, 2547790), (10, 2038232), (14, 1455880), (16, 1273895), (17, 1198960), (20, 1019116), (28, 727940), (34, 599480), (35, 582352), (40, 509558), (56, 363970), (68, 299740), (70, 291176), (80, 254779), (85, 239792), (112, 181985), (119, 171280), (136, 149870), (140, 145588), (170, 119896), (238, 85640), (272, 74935), (280, 72794), (340, 59948), (476, 42820), (560, 36397), (595, 34256), (680, 29974), (952, 21410), (1190, 17128), (1360, 14987), (1904, 10705), (2141, 9520), (2380, 8564), (4282, 4760)]