256750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:109

約数の個数: 32

約数和(自身を含む): 524160

約数和(自身を除く): 267410

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 125, 130, 158, 250, 325, 395, 650, 790, 1027, 1625, 1975, 2054, 3250, 3950, 5135, 9875, 10270, 19750, 25675, 51350, 128375, 256750]

約数ペア:

[(1, 256750), (2, 128375), (5, 51350), (10, 25675), (13, 19750), (25, 10270), (26, 9875), (50, 5135), (65, 3950), (79, 3250), (125, 2054), (130, 1975), (158, 1625), (250, 1027), (325, 790), (395, 650)]