28117310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6977}}^1$

素因数の和:7028

約数の個数: 32

約数和(自身を含む): 56270592

約数和(自身を除く): 28153282

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 6977, 13954, 34885, 69770, 90701, 181402, 216287, 432574, 453505, 907010, 1081435, 2162870, 2811731, 5623462, 14058655, 28117310]

約数ペア:

[(1, 28117310), (2, 14058655), (5, 5623462), (10, 2811731), (13, 2162870), (26, 1081435), (31, 907010), (62, 453505), (65, 432574), (130, 216287), (155, 181402), (310, 90701), (403, 69770), (806, 34885), (2015, 13954), (4030, 6977)]