20108025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{751}}^1$

素因数の和:791

約数の個数: 72

約数和(自身を含む): 43640064

約数和(自身を除く): 23532039

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 35, 45, 51, 63, 75, 85, 105, 119, 153, 175, 225, 255, 315, 357, 425, 525, 595, 751, 765, 1071, 1275, 1575, 1785, 2253, 2975, 3755, 3825, 5257, 5355, 6759, 8925, 11265, 12767, 15771, 18775, 26285, 26775, 33795, 38301, 47313, 56325, 63835, 78855, 89369, 114903, 131425, 168975, 191505, 236565, 268107, 319175, 394275, 446845, 574515, 804321, 957525, 1182825, 1340535, 2234225, 2872575, 4021605, 6702675, 20108025]

約数ペア:

[(1, 20108025), (3, 6702675), (5, 4021605), (7, 2872575), (9, 2234225), (15, 1340535), (17, 1182825), (21, 957525), (25, 804321), (35, 574515), (45, 446845), (51, 394275), (63, 319175), (75, 268107), (85, 236565), (105, 191505), (119, 168975), (153, 131425), (175, 114903), (225, 89369), (255, 78855), (315, 63835), (357, 56325), (425, 47313), (525, 38301), (595, 33795), (751, 26775), (765, 26285), (1071, 18775), (1275, 15771), (1575, 12767), (1785, 11265), (2253, 8925), (2975, 6759), (3755, 5355), (3825, 5257)]