20613670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1409}}^1$

素因数の和:1453

約数の個数: 64

約数和(自身を含む): 48729600

約数和(自身を除く): 28115930

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 35, 38, 55, 70, 77, 95, 110, 133, 154, 190, 209, 266, 385, 418, 665, 770, 1045, 1330, 1409, 1463, 2090, 2818, 2926, 7045, 7315, 9863, 14090, 14630, 15499, 19726, 26771, 30998, 49315, 53542, 77495, 98630, 108493, 133855, 154990, 187397, 216986, 267710, 294481, 374794, 542465, 588962, 936985, 1084930, 1472405, 1873970, 2061367, 2944810, 4122734, 10306835, 20613670]

約数ペア:

[(1, 20613670), (2, 10306835), (5, 4122734), (7, 2944810), (10, 2061367), (11, 1873970), (14, 1472405), (19, 1084930), (22, 936985), (35, 588962), (38, 542465), (55, 374794), (70, 294481), (77, 267710), (95, 216986), (110, 187397), (133, 154990), (154, 133855), (190, 108493), (209, 98630), (266, 77495), (385, 53542), (418, 49315), (665, 30998), (770, 26771), (1045, 19726), (1330, 15499), (1409, 14630), (1463, 14090), (2090, 9863), (2818, 7315), (2926, 7045)]