18086800

素因数分解:

$2^4\times 5^2\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:560

約数の個数: 60

約数和(自身を含む): 43975360

約数和(自身を除く): 25888560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 103, 200, 206, 400, 412, 439, 515, 824, 878, 1030, 1648, 1756, 2060, 2195, 2575, 3512, 4120, 4390, 5150, 7024, 8240, 8780, 10300, 10975, 17560, 20600, 21950, 35120, 41200, 43900, 45217, 87800, 90434, 175600, 180868, 226085, 361736, 452170, 723472, 904340, 1130425, 1808680, 2260850, 3617360, 4521700, 9043400, 18086800]

約数ペア:

[(1, 18086800), (2, 9043400), (4, 4521700), (5, 3617360), (8, 2260850), (10, 1808680), (16, 1130425), (20, 904340), (25, 723472), (40, 452170), (50, 361736), (80, 226085), (100, 180868), (103, 175600), (200, 90434), (206, 87800), (400, 45217), (412, 43900), (439, 41200), (515, 35120), (824, 21950), (878, 20600), (1030, 17560), (1648, 10975), (1756, 10300), (2060, 8780), (2195, 8240), (2575, 7024), (3512, 5150), (4120, 4390)]