258563020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1\times {\mathrm{839}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 572947200

約数和(自身を除く): 314384180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 811, 839, 1622, 1678, 3244, 3356, 4055, 4195, 8110, 8390, 15409, 15941, 16220, 16780, 30818, 31882, 61636, 63764, 77045, 79705, 154090, 159410, 308180, 318820, 680429, 1360858, 2721716, 3402145, 6804290, 12928151, 13608580, 25856302, 51712604, 64640755, 129281510, 258563020]

約数ペア:

[(1, 258563020), (2, 129281510), (4, 64640755), (5, 51712604), (10, 25856302), (19, 13608580), (20, 12928151), (38, 6804290), (76, 3402145), (95, 2721716), (190, 1360858), (380, 680429), (811, 318820), (839, 308180), (1622, 159410), (1678, 154090), (3244, 79705), (3356, 77045), (4055, 63764), (4195, 61636), (8110, 31882), (8390, 30818), (15409, 16780), (15941, 16220)]