31505578325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1\times {\mathrm{1867}}^1$

素因数の和:2406

約数の個数: 48

約数和(自身を含む): 42513737280

約数和(自身を除く): 11008158955

約数列:

[1, 5, 13, 25, 65, 137, 325, 379, 685, 1781, 1867, 1895, 3425, 4927, 8905, 9335, 9475, 24271, 24635, 44525, 46675, 51923, 121355, 123175, 255779, 259615, 606775, 674999, 707593, 1278895, 1298075, 3325127, 3374995, 3537965, 6394475, 9198709, 16625635, 16874975, 17689825, 45993545, 83128175, 96940241, 229967725, 484701205, 1260223133, 2423506025, 6301115665, 31505578325]

約数ペア:

[(1, 31505578325), (5, 6301115665), (13, 2423506025), (25, 1260223133), (65, 484701205), (137, 229967725), (325, 96940241), (379, 83128175), (685, 45993545), (1781, 17689825), (1867, 16874975), (1895, 16625635), (3425, 9198709), (4927, 6394475), (8905, 3537965), (9335, 3374995), (9475, 3325127), (24271, 1298075), (24635, 1278895), (44525, 707593), (46675, 674999), (51923, 606775), (121355, 259615), (123175, 255779)]