131225900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{100943}}^1$

素因数の和:100970

約数の個数: 36

約数和(自身を含む): 306667872

約数和(自身を除く): 175441972

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 100943, 201886, 403772, 504715, 1009430, 1312259, 2018860, 2523575, 2624518, 5047150, 5249036, 6561295, 10094300, 13122590, 26245180, 32806475, 65612950, 131225900]

約数ペア:

[(1, 131225900), (2, 65612950), (4, 32806475), (5, 26245180), (10, 13122590), (13, 10094300), (20, 6561295), (25, 5249036), (26, 5047150), (50, 2624518), (52, 2523575), (65, 2018860), (100, 1312259), (130, 1009430), (260, 504715), (325, 403772), (650, 201886), (1300, 100943)]