28720730

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{1021}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 54084240

約数和(自身を除く): 25363510

約数列:

[1, 2, 5, 10, 29, 58, 97, 145, 194, 290, 485, 970, 1021, 2042, 2813, 5105, 5626, 10210, 14065, 28130, 29609, 59218, 99037, 148045, 198074, 296090, 495185, 990370, 2872073, 5744146, 14360365, 28720730]

約数ペア:

[(1, 28720730), (2, 14360365), (5, 5744146), (10, 2872073), (29, 990370), (58, 495185), (97, 296090), (145, 198074), (194, 148045), (290, 99037), (485, 59218), (970, 29609), (1021, 28130), (2042, 14065), (2813, 10210), (5105, 5626)]