127817720

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{5179}}^1$

素因数の和:5807

約数の個数: 32

約数和(自身を含む): 288111600

約数和(自身を除く): 160293880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 3085, 4936, 5179, 6170, 10358, 12340, 20716, 24680, 25895, 41432, 51790, 103580, 207160, 3195443, 6390886, 12781772, 15977215, 25563544, 31954430, 63908860, 127817720]

約数ペア:

[(1, 127817720), (2, 63908860), (4, 31954430), (5, 25563544), (8, 15977215), (10, 12781772), (20, 6390886), (40, 3195443), (617, 207160), (1234, 103580), (2468, 51790), (3085, 41432), (4936, 25895), (5179, 24680), (6170, 20716), (10358, 12340)]