1999928475

素因数分解:

$3^4\times 5^2\times {\mathrm{307}}^1\times {\mathrm{3217}}^1$

素因数の和:3546

約数の個数: 60

約数和(自身を含む): 3717781144

約数和(自身を除く): 1717852669

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 307, 405, 675, 921, 1535, 2025, 2763, 3217, 4605, 7675, 8289, 9651, 13815, 16085, 23025, 24867, 28953, 41445, 48255, 69075, 80425, 86859, 124335, 144765, 207225, 241275, 260577, 434295, 621675, 723825, 987619, 1302885, 2171475, 2962857, 4938095, 6514425, 8888571, 14814285, 24690475, 26665713, 44442855, 74071425, 79997139, 133328565, 222214275, 399985695, 666642825, 1999928475]

約数ペア:

[(1, 1999928475), (3, 666642825), (5, 399985695), (9, 222214275), (15, 133328565), (25, 79997139), (27, 74071425), (45, 44442855), (75, 26665713), (81, 24690475), (135, 14814285), (225, 8888571), (307, 6514425), (405, 4938095), (675, 2962857), (921, 2171475), (1535, 1302885), (2025, 987619), (2763, 723825), (3217, 621675), (4605, 434295), (7675, 260577), (8289, 241275), (9651, 207225), (13815, 144765), (16085, 124335), (23025, 86859), (24867, 80425), (28953, 69075), (41445, 48255)]