261580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 635040

約数和(自身を除く): 373460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 41, 44, 55, 58, 82, 110, 116, 145, 164, 205, 220, 290, 319, 410, 451, 580, 638, 820, 902, 1189, 1276, 1595, 1804, 2255, 2378, 3190, 4510, 4756, 5945, 6380, 9020, 11890, 13079, 23780, 26158, 52316, 65395, 130790, 261580]

約数ペア:

[(1, 261580), (2, 130790), (4, 65395), (5, 52316), (10, 26158), (11, 23780), (20, 13079), (22, 11890), (29, 9020), (41, 6380), (44, 5945), (55, 4756), (58, 4510), (82, 3190), (110, 2378), (116, 2255), (145, 1804), (164, 1595), (205, 1276), (220, 1189), (290, 902), (319, 820), (410, 638), (451, 580)]