81959505

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4099}}^1$

素因数の和:4181

約数の個数: 32

約数和(自身を含む): 138547200

約数和(自身を除く): 56587695

約数列:

[1, 3, 5, 15, 31, 43, 93, 129, 155, 215, 465, 645, 1333, 3999, 4099, 6665, 12297, 19995, 20495, 61485, 127069, 176257, 381207, 528771, 635345, 881285, 1906035, 2643855, 5463967, 16391901, 27319835, 81959505]

約数ペア:

[(1, 81959505), (3, 27319835), (5, 16391901), (15, 5463967), (31, 2643855), (43, 1906035), (93, 881285), (129, 635345), (155, 528771), (215, 381207), (465, 176257), (645, 127069), (1333, 61485), (3999, 20495), (4099, 19995), (6665, 12297)]