28878397925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1021}}^1\times {\mathrm{3001}}^1$

素因数の和:4074

約数の個数: 48

約数和(自身を含む): 39945932880

約数和(自身を除く): 11067534955

約数列:

[1, 5, 13, 25, 29, 65, 145, 325, 377, 725, 1021, 1885, 3001, 5105, 9425, 13273, 15005, 25525, 29609, 39013, 66365, 75025, 87029, 148045, 195065, 331825, 384917, 435145, 740225, 975325, 1131377, 1924585, 2175725, 3064021, 5656885, 9622925, 15320105, 28284425, 39832273, 76600525, 88856609, 199161365, 444283045, 995806825, 1155135917, 2221415225, 5775679585, 28878397925]

約数ペア:

[(1, 28878397925), (5, 5775679585), (13, 2221415225), (25, 1155135917), (29, 995806825), (65, 444283045), (145, 199161365), (325, 88856609), (377, 76600525), (725, 39832273), (1021, 28284425), (1885, 15320105), (3001, 9622925), (5105, 5656885), (9425, 3064021), (13273, 2175725), (15005, 1924585), (25525, 1131377), (29609, 975325), (39013, 740225), (66365, 435145), (75025, 384917), (87029, 331825), (148045, 195065)]