261499992

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{838141}}^1$

素因数の和:838163

約数の個数: 32

約数和(自身を含む): 704039280

約数和(自身を除く): 442539288

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 838141, 1676282, 2514423, 3352564, 5028846, 6705128, 10057692, 10895833, 20115384, 21791666, 32687499, 43583332, 65374998, 87166664, 130749996, 261499992]

約数ペア:

[(1, 261499992), (2, 130749996), (3, 87166664), (4, 65374998), (6, 43583332), (8, 32687499), (12, 21791666), (13, 20115384), (24, 10895833), (26, 10057692), (39, 6705128), (52, 5028846), (78, 3352564), (104, 2514423), (156, 1676282), (312, 838141)]