80728760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288317}}^1$

素因数の和:288335

約数の個数: 32

約数和(自身を含む): 207588960

約数和(自身を除く): 126860200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288317, 576634, 1153268, 1441585, 2018219, 2306536, 2883170, 4036438, 5766340, 8072876, 10091095, 11532680, 16145752, 20182190, 40364380, 80728760]

約数ペア:

[(1, 80728760), (2, 40364380), (4, 20182190), (5, 16145752), (7, 11532680), (8, 10091095), (10, 8072876), (14, 5766340), (20, 4036438), (28, 2883170), (35, 2306536), (40, 2018219), (56, 1441585), (70, 1153268), (140, 576634), (280, 288317)]