20163368475

素因数分解:

$3^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{80953}}^1$

素因数の和:81019

約数の個数: 72

約数和(自身を含む): 38366367312

約数和(自身を除く): 18202998837

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 75, 81, 123, 135, 205, 225, 243, 369, 405, 615, 675, 1025, 1107, 1215, 1845, 2025, 3075, 3321, 5535, 6075, 9225, 9963, 16605, 27675, 49815, 80953, 83025, 242859, 249075, 404765, 728577, 1214295, 2023825, 2185731, 3319073, 3642885, 6071475, 6557193, 9957219, 10928655, 16595365, 18214425, 19671579, 29871657, 32785965, 49786095, 54643275, 82976825, 89614971, 98357895, 149358285, 163929825, 248930475, 268844913, 448074855, 491789475, 746791425, 806534739, 1344224565, 2240374275, 4032673695, 6721122825, 20163368475]

約数ペア:

[(1, 20163368475), (3, 6721122825), (5, 4032673695), (9, 2240374275), (15, 1344224565), (25, 806534739), (27, 746791425), (41, 491789475), (45, 448074855), (75, 268844913), (81, 248930475), (123, 163929825), (135, 149358285), (205, 98357895), (225, 89614971), (243, 82976825), (369, 54643275), (405, 49786095), (615, 32785965), (675, 29871657), (1025, 19671579), (1107, 18214425), (1215, 16595365), (1845, 10928655), (2025, 9957219), (3075, 6557193), (3321, 6071475), (5535, 3642885), (6075, 3319073), (9225, 2185731), (9963, 2023825), (16605, 1214295), (27675, 728577), (49815, 404765), (80953, 249075), (83025, 242859)]