20752920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3391}}^1$

素因数の和:3425

約数の個数: 96

約数和(自身を含む): 71435520

約数和(自身を除く): 50682600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 306, 340, 360, 408, 510, 612, 680, 765, 1020, 1224, 1530, 2040, 3060, 3391, 6120, 6782, 10173, 13564, 16955, 20346, 27128, 30519, 33910, 40692, 50865, 57647, 61038, 67820, 81384, 101730, 115294, 122076, 135640, 152595, 172941, 203460, 230588, 244152, 288235, 305190, 345882, 406920, 461176, 518823, 576470, 610380, 691764, 864705, 1037646, 1152940, 1220760, 1383528, 1729410, 2075292, 2305880, 2594115, 3458820, 4150584, 5188230, 6917640, 10376460, 20752920]

約数ペア:

[(1, 20752920), (2, 10376460), (3, 6917640), (4, 5188230), (5, 4150584), (6, 3458820), (8, 2594115), (9, 2305880), (10, 2075292), (12, 1729410), (15, 1383528), (17, 1220760), (18, 1152940), (20, 1037646), (24, 864705), (30, 691764), (34, 610380), (36, 576470), (40, 518823), (45, 461176), (51, 406920), (60, 345882), (68, 305190), (72, 288235), (85, 244152), (90, 230588), (102, 203460), (120, 172941), (136, 152595), (153, 135640), (170, 122076), (180, 115294), (204, 101730), (255, 81384), (306, 67820), (340, 61038), (360, 57647), (408, 50865), (510, 40692), (612, 33910), (680, 30519), (765, 27128), (1020, 20346), (1224, 16955), (1530, 13564), (2040, 10173), (3060, 6782), (3391, 6120)]