20072205

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1709}}^1$

素因数の和:1755

約数の個数: 40

約数和(自身を含む): 37243800

約数和(自身を除く): 17171595

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 261, 405, 435, 783, 1305, 1709, 2349, 3915, 5127, 8545, 11745, 15381, 25635, 46143, 49561, 76905, 138429, 148683, 230715, 247805, 446049, 692145, 743415, 1338147, 2230245, 4014441, 6690735, 20072205]

約数ペア:

[(1, 20072205), (3, 6690735), (5, 4014441), (9, 2230245), (15, 1338147), (27, 743415), (29, 692145), (45, 446049), (81, 247805), (87, 230715), (135, 148683), (145, 138429), (261, 76905), (405, 49561), (435, 46143), (783, 25635), (1305, 15381), (1709, 11745), (2349, 8545), (3915, 5127)]