144840020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{1163}}^1$

素因数の和:1664

約数の個数: 48

約数和(自身を含む): 328527360

約数和(自身を除く): 183687340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 479, 958, 1163, 1916, 2326, 2395, 4652, 4790, 5815, 6227, 9580, 11630, 12454, 15119, 23260, 24908, 30238, 31135, 60476, 62270, 75595, 124540, 151190, 302380, 557077, 1114154, 2228308, 2785385, 5570770, 7242001, 11141540, 14484002, 28968004, 36210005, 72420010, 144840020]

約数ペア:

[(1, 144840020), (2, 72420010), (4, 36210005), (5, 28968004), (10, 14484002), (13, 11141540), (20, 7242001), (26, 5570770), (52, 2785385), (65, 2228308), (130, 1114154), (260, 557077), (479, 302380), (958, 151190), (1163, 124540), (1916, 75595), (2326, 62270), (2395, 60476), (4652, 31135), (4790, 30238), (5815, 24908), (6227, 23260), (9580, 15119), (11630, 12454)]