20489196

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:703

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40474644

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 29, 39, 42, 52, 58, 78, 84, 87, 91, 116, 156, 174, 182, 203, 273, 348, 364, 377, 406, 546, 609, 647, 754, 812, 1092, 1131, 1218, 1294, 1508, 1941, 2262, 2436, 2588, 2639, 3882, 4524, 4529, 5278, 7764, 7917, 8411, 9058, 10556, 13587, 15834, 16822, 18116, 18763, 25233, 27174, 31668, 33644, 37526, 50466, 54348, 56289, 58877, 75052, 100932, 112578, 117754, 131341, 176631, 225156, 235508, 243919, 262682, 353262, 394023, 487838, 525364, 706524, 731757, 788046, 975676, 1463514, 1576092, 1707433, 2927028, 3414866, 5122299, 6829732, 10244598, 20489196]

約数ペア:

[(1, 20489196), (2, 10244598), (3, 6829732), (4, 5122299), (6, 3414866), (7, 2927028), (12, 1707433), (13, 1576092), (14, 1463514), (21, 975676), (26, 788046), (28, 731757), (29, 706524), (39, 525364), (42, 487838), (52, 394023), (58, 353262), (78, 262682), (84, 243919), (87, 235508), (91, 225156), (116, 176631), (156, 131341), (174, 117754), (182, 112578), (203, 100932), (273, 75052), (348, 58877), (364, 56289), (377, 54348), (406, 50466), (546, 37526), (609, 33644), (647, 31668), (754, 27174), (812, 25233), (1092, 18763), (1131, 18116), (1218, 16822), (1294, 15834), (1508, 13587), (1941, 10556), (2262, 9058), (2436, 8411), (2588, 7917), (2639, 7764), (3882, 5278), (4524, 4529)]