18689320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 45803520

約数和(自身を除く): 27114200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 254, 260, 283, 508, 520, 566, 635, 1016, 1132, 1270, 1415, 1651, 2264, 2540, 2830, 3302, 3679, 5080, 5660, 6604, 7358, 8255, 11320, 13208, 14716, 16510, 18395, 29432, 33020, 35941, 36790, 66040, 71882, 73580, 143764, 147160, 179705, 287528, 359410, 467233, 718820, 934466, 1437640, 1868932, 2336165, 3737864, 4672330, 9344660, 18689320]

約数ペア:

[(1, 18689320), (2, 9344660), (4, 4672330), (5, 3737864), (8, 2336165), (10, 1868932), (13, 1437640), (20, 934466), (26, 718820), (40, 467233), (52, 359410), (65, 287528), (104, 179705), (127, 147160), (130, 143764), (254, 73580), (260, 71882), (283, 66040), (508, 36790), (520, 35941), (566, 33020), (635, 29432), (1016, 18395), (1132, 16510), (1270, 14716), (1415, 13208), (1651, 11320), (2264, 8255), (2540, 7358), (2830, 6604), (3302, 5660), (3679, 5080)]