18158860

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 39989376

約数和(自身を除く): 21830516

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 463, 530, 740, 926, 1060, 1852, 1961, 2315, 3922, 4630, 7844, 9260, 9805, 17131, 19610, 24539, 34262, 39220, 49078, 68524, 85655, 98156, 122695, 171310, 245390, 342620, 490780, 907943, 1815886, 3631772, 4539715, 9079430, 18158860]

約数ペア:

[(1, 18158860), (2, 9079430), (4, 4539715), (5, 3631772), (10, 1815886), (20, 907943), (37, 490780), (53, 342620), (74, 245390), (106, 171310), (148, 122695), (185, 98156), (212, 85655), (265, 68524), (370, 49078), (463, 39220), (530, 34262), (740, 24539), (926, 19610), (1060, 17131), (1852, 9805), (1961, 9260), (2315, 7844), (3922, 4630)]