20181018424

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1\times {\mathrm{11279}}^1$

素因数の和:11740

約数の個数: 64

約数和(自身を含む): 43856640000

約数和(自身を除く): 23675621576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 359, 623, 712, 718, 1246, 1436, 2492, 2513, 2872, 4984, 5026, 10052, 11279, 20104, 22558, 31951, 45116, 63902, 78953, 90232, 127804, 157906, 223657, 255608, 315812, 447314, 631624, 894628, 1003831, 1789256, 2007662, 4015324, 4049161, 7026817, 8030648, 8098322, 14053634, 16196644, 28107268, 28344127, 32393288, 56214536, 56688254, 113376508, 226753016, 360375329, 720750658, 1441501316, 2522627303, 2883002632, 5045254606, 10090509212, 20181018424]

約数ペア:

[(1, 20181018424), (2, 10090509212), (4, 5045254606), (7, 2883002632), (8, 2522627303), (14, 1441501316), (28, 720750658), (56, 360375329), (89, 226753016), (178, 113376508), (356, 56688254), (359, 56214536), (623, 32393288), (712, 28344127), (718, 28107268), (1246, 16196644), (1436, 14053634), (2492, 8098322), (2513, 8030648), (2872, 7026817), (4984, 4049161), (5026, 4015324), (10052, 2007662), (11279, 1789256), (20104, 1003831), (22558, 894628), (31951, 631624), (45116, 447314), (63902, 315812), (78953, 255608), (90232, 223657), (127804, 157906)]