20177887725

素因数分解:

$3^5\times 5^2\times {\mathrm{167}}^1\times {\mathrm{19889}}^1$

素因数の和:20081

約数の個数: 72

約数和(自身を含む): 37705711680

約数和(自身を除く): 17527823955

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 167, 225, 243, 405, 501, 675, 835, 1215, 1503, 2025, 2505, 4175, 4509, 6075, 7515, 12525, 13527, 19889, 22545, 37575, 40581, 59667, 67635, 99445, 112725, 179001, 202905, 298335, 338175, 497225, 537003, 895005, 1014525, 1491675, 1611009, 2685015, 3321463, 4475025, 4833027, 8055045, 9964389, 13425075, 16607315, 24165135, 29893167, 40275225, 49821945, 83036575, 89679501, 120825675, 149465835, 249109725, 269038503, 448397505, 747329175, 807115509, 1345192515, 2241987525, 4035577545, 6725962575, 20177887725]

約数ペア:

[(1, 20177887725), (3, 6725962575), (5, 4035577545), (9, 2241987525), (15, 1345192515), (25, 807115509), (27, 747329175), (45, 448397505), (75, 269038503), (81, 249109725), (135, 149465835), (167, 120825675), (225, 89679501), (243, 83036575), (405, 49821945), (501, 40275225), (675, 29893167), (835, 24165135), (1215, 16607315), (1503, 13425075), (2025, 9964389), (2505, 8055045), (4175, 4833027), (4509, 4475025), (6075, 3321463), (7515, 2685015), (12525, 1611009), (13527, 1491675), (19889, 1014525), (22545, 895005), (37575, 537003), (40581, 497225), (59667, 338175), (67635, 298335), (99445, 202905), (112725, 179001)]