15620180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 34461504

約数和(自身を除く): 18841324

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 443, 820, 860, 886, 1763, 1772, 2215, 3526, 4430, 7052, 8815, 8860, 17630, 18163, 19049, 35260, 36326, 38098, 72652, 76196, 90815, 95245, 181630, 190490, 363260, 380980, 781009, 1562018, 3124036, 3905045, 7810090, 15620180]

約数ペア:

[(1, 15620180), (2, 7810090), (4, 3905045), (5, 3124036), (10, 1562018), (20, 781009), (41, 380980), (43, 363260), (82, 190490), (86, 181630), (164, 95245), (172, 90815), (205, 76196), (215, 72652), (410, 38098), (430, 36326), (443, 35260), (820, 19049), (860, 18163), (886, 17630), (1763, 8860), (1772, 8815), (2215, 7052), (3526, 4430)]