16664980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26879}}^1$

素因数の和:26919

約数の個数: 24

約数和(自身を含む): 36126720

約数和(自身を除く): 19461740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 26879, 53758, 107516, 134395, 268790, 537580, 833249, 1666498, 3332996, 4166245, 8332490, 16664980]

約数ペア:

[(1, 16664980), (2, 8332490), (4, 4166245), (5, 3332996), (10, 1666498), (20, 833249), (31, 537580), (62, 268790), (124, 134395), (155, 107516), (310, 53758), (620, 26879)]