68268980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3919}}^1$

素因数の和:4008

約数の個数: 48

約数和(自身を含む): 156737280

約数和(自身を除く): 88468300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 3919, 4355, 7838, 8710, 15676, 17420, 19595, 39190, 50947, 78380, 101894, 203788, 254735, 262573, 509470, 525146, 1018940, 1050292, 1312865, 2625730, 3413449, 5251460, 6826898, 13653796, 17067245, 34134490, 68268980]

約数ペア:

[(1, 68268980), (2, 34134490), (4, 17067245), (5, 13653796), (10, 6826898), (13, 5251460), (20, 3413449), (26, 2625730), (52, 1312865), (65, 1050292), (67, 1018940), (130, 525146), (134, 509470), (260, 262573), (268, 254735), (335, 203788), (670, 101894), (871, 78380), (1340, 50947), (1742, 39190), (3484, 19595), (3919, 17420), (4355, 15676), (7838, 8710)]