68798900

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{2677}}^1$

素因数の和:2948

約数の個数: 36

約数和(自身を含む): 149930508

約数和(自身を除く): 81131608

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 1028, 1285, 2570, 2677, 5140, 5354, 6425, 10708, 12850, 13385, 25700, 26770, 53540, 66925, 133850, 267700, 687989, 1375978, 2751956, 3439945, 6879890, 13759780, 17199725, 34399450, 68798900]

約数ペア:

[(1, 68798900), (2, 34399450), (4, 17199725), (5, 13759780), (10, 6879890), (20, 3439945), (25, 2751956), (50, 1375978), (100, 687989), (257, 267700), (514, 133850), (1028, 66925), (1285, 53540), (2570, 26770), (2677, 25700), (5140, 13385), (5354, 12850), (6425, 10708)]