18609710

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 39373776

約数和(自身を除く): 20764066

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 163, 233, 245, 326, 466, 490, 815, 1141, 1165, 1630, 1631, 2282, 2330, 3262, 5705, 7987, 8155, 11410, 11417, 15974, 16310, 22834, 37979, 39935, 57085, 75958, 79870, 114170, 189895, 265853, 379790, 531706, 1329265, 1860971, 2658530, 3721942, 9304855, 18609710]

約数ペア:

[(1, 18609710), (2, 9304855), (5, 3721942), (7, 2658530), (10, 1860971), (14, 1329265), (35, 531706), (49, 379790), (70, 265853), (98, 189895), (163, 114170), (233, 79870), (245, 75958), (326, 57085), (466, 39935), (490, 37979), (815, 22834), (1141, 16310), (1165, 15974), (1630, 11417), (1631, 11410), (2282, 8155), (2330, 7987), (3262, 5705)]