128248453840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123315821}}^1$

素因数の和:123315847

約数の個数: 40

約数和(自身を含む): 321114400488

約数和(自身を除く): 192865946648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 123315821, 246631642, 493263284, 616579105, 986526568, 1233158210, 1603105673, 1973053136, 2466316420, 3206211346, 4932632840, 6412422692, 8015528365, 9865265680, 12824845384, 16031056730, 25649690768, 32062113460, 64124226920, 128248453840]

約数ペア:

[(1, 128248453840), (2, 64124226920), (4, 32062113460), (5, 25649690768), (8, 16031056730), (10, 12824845384), (13, 9865265680), (16, 8015528365), (20, 6412422692), (26, 4932632840), (40, 3206211346), (52, 2466316420), (65, 1973053136), (80, 1603105673), (104, 1233158210), (130, 986526568), (208, 616579105), (260, 493263284), (520, 246631642), (1040, 123315821)]