1378256

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:251

約数の個数: 40

約数和(自身を含む): 2999808

約数和(自身を除く): 1621552

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 191, 328, 382, 451, 656, 764, 902, 1528, 1804, 2101, 3056, 3608, 4202, 7216, 7831, 8404, 15662, 16808, 31324, 33616, 62648, 86141, 125296, 172282, 344564, 689128, 1378256]

約数ペア:

[(1, 1378256), (2, 689128), (4, 344564), (8, 172282), (11, 125296), (16, 86141), (22, 62648), (41, 33616), (44, 31324), (82, 16808), (88, 15662), (164, 8404), (176, 7831), (191, 7216), (328, 4202), (382, 3608), (451, 3056), (656, 2101), (764, 1804), (902, 1528)]