81262428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{520913}}^1$

素因数の和:520933

約数の個数: 24

約数和(自身を含む): 204198288

約数和(自身を除く): 122935860

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 520913, 1041826, 1562739, 2083652, 3125478, 6250956, 6771869, 13543738, 20315607, 27087476, 40631214, 81262428]

約数ペア:

[(1, 81262428), (2, 40631214), (3, 27087476), (4, 20315607), (6, 13543738), (12, 6771869), (13, 6250956), (26, 3125478), (39, 2083652), (52, 1562739), (78, 1041826), (156, 520913)]