18911820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18541}}^1$

素因数の和:18570

約数の個数: 48

約数和(自身を含む): 56071008

約数和(自身を除く): 37159188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 18541, 37082, 55623, 74164, 92705, 111246, 185410, 222492, 278115, 315197, 370820, 556230, 630394, 945591, 1112460, 1260788, 1575985, 1891182, 3151970, 3782364, 4727955, 6303940, 9455910, 18911820]

約数ペア:

[(1, 18911820), (2, 9455910), (3, 6303940), (4, 4727955), (5, 3782364), (6, 3151970), (10, 1891182), (12, 1575985), (15, 1260788), (17, 1112460), (20, 945591), (30, 630394), (34, 556230), (51, 370820), (60, 315197), (68, 278115), (85, 222492), (102, 185410), (170, 111246), (204, 92705), (255, 74164), (340, 55623), (510, 37082), (1020, 18541)]