489605090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101789}}^1$

素因数の和:101846

約数の個数: 32

約数和(自身を含む): 974741040

約数和(自身を除く): 485135950

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 101789, 203578, 508945, 1017890, 1323257, 2646514, 3766193, 6616285, 7532386, 13232570, 18830965, 37661930, 48960509, 97921018, 244802545, 489605090]

約数ペア:

[(1, 489605090), (2, 244802545), (5, 97921018), (10, 48960509), (13, 37661930), (26, 18830965), (37, 13232570), (65, 7532386), (74, 6616285), (130, 3766193), (185, 2646514), (370, 1323257), (481, 1017890), (962, 508945), (2405, 203578), (4810, 101789)]