18181730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{491}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 39178944

約数和(自身を除く): 20997214

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 491, 529, 805, 982, 1058, 1610, 2455, 2645, 3437, 3703, 4910, 5290, 6874, 7406, 11293, 17185, 18515, 22586, 34370, 37030, 56465, 79051, 112930, 158102, 259739, 395255, 519478, 790510, 1298695, 1818173, 2597390, 3636346, 9090865, 18181730]

約数ペア:

[(1, 18181730), (2, 9090865), (5, 3636346), (7, 2597390), (10, 1818173), (14, 1298695), (23, 790510), (35, 519478), (46, 395255), (70, 259739), (115, 158102), (161, 112930), (230, 79051), (322, 56465), (491, 37030), (529, 34370), (805, 22586), (982, 18515), (1058, 17185), (1610, 11293), (2455, 7406), (2645, 6874), (3437, 5290), (3703, 4910)]