28159810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{569}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 59651640

約数和(自身を除く): 31491830

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 101, 202, 245, 490, 505, 569, 707, 1010, 1138, 1414, 2845, 3535, 3983, 4949, 5690, 7070, 7966, 9898, 19915, 24745, 27881, 39830, 49490, 55762, 57469, 114938, 139405, 278810, 287345, 402283, 574690, 804566, 2011415, 2815981, 4022830, 5631962, 14079905, 28159810]

約数ペア:

[(1, 28159810), (2, 14079905), (5, 5631962), (7, 4022830), (10, 2815981), (14, 2011415), (35, 804566), (49, 574690), (70, 402283), (98, 287345), (101, 278810), (202, 139405), (245, 114938), (490, 57469), (505, 55762), (569, 49490), (707, 39830), (1010, 27881), (1138, 24745), (1414, 19915), (2845, 9898), (3535, 7966), (3983, 7070), (4949, 5690)]