251178980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{14419}}^1$

素因数の和:14508

約数の個数: 48

約数和(自身を含む): 576569280

約数和(自身を除く): 325390300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 8710, 14419, 17420, 28838, 57676, 72095, 144190, 187447, 288380, 374894, 749788, 937235, 966073, 1874470, 1932146, 3748940, 3864292, 4830365, 9660730, 12558949, 19321460, 25117898, 50235796, 62794745, 125589490, 251178980]

約数ペア:

[(1, 251178980), (2, 125589490), (4, 62794745), (5, 50235796), (10, 25117898), (13, 19321460), (20, 12558949), (26, 9660730), (52, 4830365), (65, 3864292), (67, 3748940), (130, 1932146), (134, 1874470), (260, 966073), (268, 937235), (335, 749788), (670, 374894), (871, 288380), (1340, 187447), (1742, 144190), (3484, 72095), (4355, 57676), (8710, 28838), (14419, 17420)]