81262785

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{2099}}^1$

素因数の和:2225

約数の個数: 32

約数和(自身を含む): 136080000

約数和(自身を除く): 54817215

約数列:

[1, 3, 5, 15, 29, 87, 89, 145, 267, 435, 445, 1335, 2099, 2581, 6297, 7743, 10495, 12905, 31485, 38715, 60871, 182613, 186811, 304355, 560433, 913065, 934055, 2802165, 5417519, 16252557, 27087595, 81262785]

約数ペア:

[(1, 81262785), (3, 27087595), (5, 16252557), (15, 5417519), (29, 2802165), (87, 934055), (89, 913065), (145, 560433), (267, 304355), (435, 186811), (445, 182613), (1335, 60871), (2099, 38715), (2581, 31485), (6297, 12905), (7743, 10495)]