408021965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 538137600

約数和(自身を除く): 130115635

約数列:

[1, 5, 13, 65, 79, 181, 395, 439, 905, 1027, 2195, 2353, 5135, 5707, 11765, 14299, 28535, 34681, 71495, 79459, 173405, 185887, 397295, 450853, 929435, 1032967, 2254265, 5164835, 6277261, 31386305, 81604393, 408021965]

約数ペア:

[(1, 408021965), (5, 81604393), (13, 31386305), (65, 6277261), (79, 5164835), (181, 2254265), (395, 1032967), (439, 929435), (905, 450853), (1027, 397295), (2195, 185887), (2353, 173405), (5135, 79459), (5707, 71495), (11765, 34681), (14299, 28535)]