81951075

素因数分解:

$3^3\times 5^2\times {\mathrm{167}}^1\times {\mathrm{727}}^1$

素因数の和:913

約数の個数: 48

約数和(自身を含む): 151656960

約数和(自身を除く): 69705885

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 167, 225, 501, 675, 727, 835, 1503, 2181, 2505, 3635, 4175, 4509, 6543, 7515, 10905, 12525, 18175, 19629, 22545, 32715, 37575, 54525, 98145, 112725, 121409, 163575, 364227, 490725, 607045, 1092681, 1821135, 3035225, 3278043, 5463405, 9105675, 16390215, 27317025, 81951075]

約数ペア:

[(1, 81951075), (3, 27317025), (5, 16390215), (9, 9105675), (15, 5463405), (25, 3278043), (27, 3035225), (45, 1821135), (75, 1092681), (135, 607045), (167, 490725), (225, 364227), (501, 163575), (675, 121409), (727, 112725), (835, 98145), (1503, 54525), (2181, 37575), (2505, 32715), (3635, 22545), (4175, 19629), (4509, 18175), (6543, 12525), (7515, 10905)]