18642520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35851}}^1$

素因数の和:35875

約数の個数: 32

約数和(自身を含む): 45173520

約数和(自身を除く): 26531000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35851, 71702, 143404, 179255, 286808, 358510, 466063, 717020, 932126, 1434040, 1864252, 2330315, 3728504, 4660630, 9321260, 18642520]

約数ペア:

[(1, 18642520), (2, 9321260), (4, 4660630), (5, 3728504), (8, 2330315), (10, 1864252), (13, 1434040), (20, 932126), (26, 717020), (40, 466063), (52, 358510), (65, 286808), (104, 179255), (130, 143404), (260, 71702), (520, 35851)]