289318420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1\times {\mathrm{409}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 616407120

約数和(自身を除く): 327088700

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 313, 409, 452, 565, 626, 818, 1130, 1252, 1565, 1636, 2045, 2260, 3130, 4090, 6260, 8180, 35369, 46217, 70738, 92434, 128017, 141476, 176845, 184868, 231085, 256034, 353690, 462170, 512068, 640085, 707380, 924340, 1280170, 2560340, 14465921, 28931842, 57863684, 72329605, 144659210, 289318420]

約数ペア:

[(1, 289318420), (2, 144659210), (4, 72329605), (5, 57863684), (10, 28931842), (20, 14465921), (113, 2560340), (226, 1280170), (313, 924340), (409, 707380), (452, 640085), (565, 512068), (626, 462170), (818, 353690), (1130, 256034), (1252, 231085), (1565, 184868), (1636, 176845), (2045, 141476), (2260, 128017), (3130, 92434), (4090, 70738), (6260, 46217), (8180, 35369)]