1220780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 2903040

約数和(自身を除く): 1682260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 179, 220, 310, 341, 358, 620, 682, 716, 895, 1364, 1705, 1790, 1969, 3410, 3580, 3938, 5549, 6820, 7876, 9845, 11098, 19690, 22196, 27745, 39380, 55490, 61039, 110980, 122078, 244156, 305195, 610390, 1220780]

約数ペア:

[(1, 1220780), (2, 610390), (4, 305195), (5, 244156), (10, 122078), (11, 110980), (20, 61039), (22, 55490), (31, 39380), (44, 27745), (55, 22196), (62, 19690), (110, 11098), (124, 9845), (155, 7876), (179, 6820), (220, 5549), (310, 3938), (341, 3580), (358, 3410), (620, 1969), (682, 1790), (716, 1705), (895, 1364)]