257730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1$

素因数の和:103

約数の個数: 48

約数和(自身を含む): 689472

約数和(自身を除く): 431742

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 71, 110, 121, 142, 165, 213, 242, 330, 355, 363, 426, 605, 710, 726, 781, 1065, 1210, 1562, 1815, 2130, 2343, 3630, 3905, 4686, 7810, 8591, 11715, 17182, 23430, 25773, 42955, 51546, 85910, 128865, 257730]

約数ペア:

[(1, 257730), (2, 128865), (3, 85910), (5, 51546), (6, 42955), (10, 25773), (11, 23430), (15, 17182), (22, 11715), (30, 8591), (33, 7810), (55, 4686), (66, 3905), (71, 3630), (110, 2343), (121, 2130), (142, 1815), (165, 1562), (213, 1210), (242, 1065), (330, 781), (355, 726), (363, 710), (426, 605)]