127613720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245411}}^1$

素因数の和:245435

約数の個数: 32

約数和(自身を含む): 309219120

約数和(自身を除く): 181605400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 245411, 490822, 981644, 1227055, 1963288, 2454110, 3190343, 4908220, 6380686, 9816440, 12761372, 15951715, 25522744, 31903430, 63806860, 127613720]

約数ペア:

[(1, 127613720), (2, 63806860), (4, 31903430), (5, 25522744), (8, 15951715), (10, 12761372), (13, 9816440), (20, 6380686), (26, 4908220), (40, 3190343), (52, 2454110), (65, 1963288), (104, 1227055), (130, 981644), (260, 490822), (520, 245411)]