16131880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 37920960

約数和(自身を除く): 21789080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 83, 86, 113, 166, 172, 215, 226, 332, 344, 415, 430, 452, 565, 664, 830, 860, 904, 1130, 1660, 1720, 2260, 3320, 3569, 4520, 4859, 7138, 9379, 9718, 14276, 17845, 18758, 19436, 24295, 28552, 35690, 37516, 38872, 46895, 48590, 71380, 75032, 93790, 97180, 142760, 187580, 194360, 375160, 403297, 806594, 1613188, 2016485, 3226376, 4032970, 8065940, 16131880]

約数ペア:

[(1, 16131880), (2, 8065940), (4, 4032970), (5, 3226376), (8, 2016485), (10, 1613188), (20, 806594), (40, 403297), (43, 375160), (83, 194360), (86, 187580), (113, 142760), (166, 97180), (172, 93790), (215, 75032), (226, 71380), (332, 48590), (344, 46895), (415, 38872), (430, 37516), (452, 35690), (565, 28552), (664, 24295), (830, 19436), (860, 18758), (904, 17845), (1130, 14276), (1660, 9718), (1720, 9379), (2260, 7138), (3320, 4859), (3569, 4520)]