51131340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21851}}^1$

素因数の和:21879

約数の個数: 72

約数和(自身を含む): 167036688

約数和(自身を除く): 115905348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 21851, 43702, 65553, 87404, 109255, 131106, 196659, 218510, 262212, 284063, 327765, 393318, 437020, 568126, 655530, 786636, 852189, 983295, 1136252, 1311060, 1420315, 1704378, 1966590, 2556567, 2840630, 3408756, 3933180, 4260945, 5113134, 5681260, 8521890, 10226268, 12782835, 17043780, 25565670, 51131340]

約数ペア:

[(1, 51131340), (2, 25565670), (3, 17043780), (4, 12782835), (5, 10226268), (6, 8521890), (9, 5681260), (10, 5113134), (12, 4260945), (13, 3933180), (15, 3408756), (18, 2840630), (20, 2556567), (26, 1966590), (30, 1704378), (36, 1420315), (39, 1311060), (45, 1136252), (52, 983295), (60, 852189), (65, 786636), (78, 655530), (90, 568126), (117, 437020), (130, 393318), (156, 327765), (180, 284063), (195, 262212), (234, 218510), (260, 196659), (390, 131106), (468, 109255), (585, 87404), (780, 65553), (1170, 43702), (2340, 21851)]