28378920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1367}}^1$

素因数の和:1554

約数の個数: 64

約数和(自身を含む): 85691520

約数和(自身を除く): 57312600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 1038, 1367, 1384, 1730, 2076, 2595, 2734, 3460, 4101, 4152, 5190, 5468, 6835, 6920, 8202, 10380, 10936, 13670, 16404, 20505, 20760, 27340, 32808, 41010, 54680, 82020, 164040, 236491, 472982, 709473, 945964, 1182455, 1418946, 1891928, 2364910, 2837892, 3547365, 4729820, 5675784, 7094730, 9459640, 14189460, 28378920]

約数ペア:

[(1, 28378920), (2, 14189460), (3, 9459640), (4, 7094730), (5, 5675784), (6, 4729820), (8, 3547365), (10, 2837892), (12, 2364910), (15, 1891928), (20, 1418946), (24, 1182455), (30, 945964), (40, 709473), (60, 472982), (120, 236491), (173, 164040), (346, 82020), (519, 54680), (692, 41010), (865, 32808), (1038, 27340), (1367, 20760), (1384, 20505), (1730, 16404), (2076, 13670), (2595, 10936), (2734, 10380), (3460, 8202), (4101, 6920), (4152, 6835), (5190, 5468)]