81185505

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{659}}^1$

素因数の和:901

約数の個数: 32

約数和(自身を含む): 133816320

約数和(自身を除く): 52630815

約数列:

[1, 3, 5, 15, 43, 129, 191, 215, 573, 645, 659, 955, 1977, 2865, 3295, 8213, 9885, 24639, 28337, 41065, 85011, 123195, 125869, 141685, 377607, 425055, 629345, 1888035, 5412367, 16237101, 27061835, 81185505]

約数ペア:

[(1, 81185505), (3, 27061835), (5, 16237101), (15, 5412367), (43, 1888035), (129, 629345), (191, 425055), (215, 377607), (573, 141685), (645, 125869), (659, 123195), (955, 85011), (1977, 41065), (2865, 28337), (3295, 24639), (8213, 9885)]