18589280

素因数分解:

$2^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{521}}^1$

素因数の和:759

約数の個数: 48

約数和(自身を含む): 44198784

約数和(自身を除く): 25609504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 446, 521, 892, 1042, 1115, 1784, 2084, 2230, 2605, 3568, 4168, 4460, 5210, 7136, 8336, 8920, 10420, 16672, 17840, 20840, 35680, 41680, 83360, 116183, 232366, 464732, 580915, 929464, 1161830, 1858928, 2323660, 3717856, 4647320, 9294640, 18589280]

約数ペア:

[(1, 18589280), (2, 9294640), (4, 4647320), (5, 3717856), (8, 2323660), (10, 1858928), (16, 1161830), (20, 929464), (32, 580915), (40, 464732), (80, 232366), (160, 116183), (223, 83360), (446, 41680), (521, 35680), (892, 20840), (1042, 17840), (1115, 16672), (1784, 10420), (2084, 8920), (2230, 8336), (2605, 7136), (3568, 5210), (4168, 4460)]