25242580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{641}}^1$

素因数の和:840

約数の個数: 48

約数和(自身を含む): 58242240

約数和(自身を除く): 32999660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 641, 716, 895, 1282, 1790, 1969, 2564, 3205, 3580, 3938, 6410, 7051, 7876, 9845, 12820, 14102, 19690, 28204, 35255, 39380, 70510, 114739, 141020, 229478, 458956, 573695, 1147390, 1262129, 2294780, 2524258, 5048516, 6310645, 12621290, 25242580]

約数ペア:

[(1, 25242580), (2, 12621290), (4, 6310645), (5, 5048516), (10, 2524258), (11, 2294780), (20, 1262129), (22, 1147390), (44, 573695), (55, 458956), (110, 229478), (179, 141020), (220, 114739), (358, 70510), (641, 39380), (716, 35255), (895, 28204), (1282, 19690), (1790, 14102), (1969, 12820), (2564, 9845), (3205, 7876), (3580, 7051), (3938, 6410)]