256400014

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1\times {\mathrm{389}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 421031520

約数和(自身を除く): 164631506

約数列:

[1, 2, 13, 26, 101, 202, 251, 389, 502, 778, 1313, 2626, 3263, 5057, 6526, 10114, 25351, 39289, 50702, 78578, 97639, 195278, 329563, 510757, 659126, 1021514, 1269307, 2538614, 9861539, 19723078, 128200007, 256400014]

約数ペア:

[(1, 256400014), (2, 128200007), (13, 19723078), (26, 9861539), (101, 2538614), (202, 1269307), (251, 1021514), (389, 659126), (502, 510757), (778, 329563), (1313, 195278), (2626, 97639), (3263, 78578), (5057, 50702), (6526, 39289), (10114, 25351)]