1815890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:194

約数の個数: 32

約数和(自身を含む): 3459456

約数和(自身を除く): 1643566

約数列:

[1, 2, 5, 10, 41, 43, 82, 86, 103, 205, 206, 215, 410, 430, 515, 1030, 1763, 3526, 4223, 4429, 8446, 8815, 8858, 17630, 21115, 22145, 42230, 44290, 181589, 363178, 907945, 1815890]

約数ペア:

[(1, 1815890), (2, 907945), (5, 363178), (10, 181589), (41, 44290), (43, 42230), (82, 22145), (86, 21115), (103, 17630), (205, 8858), (206, 8815), (215, 8446), (410, 4429), (430, 4223), (515, 3526), (1030, 1763)]