18108225

素因数分解:

$3^3\times 5^2\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 33678400

約数和(自身を除く): 15570175

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 139, 193, 225, 417, 579, 675, 695, 965, 1251, 1737, 2085, 2895, 3475, 3753, 4825, 5211, 6255, 8685, 10425, 14475, 18765, 26055, 26827, 31275, 43425, 80481, 93825, 130275, 134135, 241443, 402405, 670675, 724329, 1207215, 2012025, 3621645, 6036075, 18108225]

約数ペア:

[(1, 18108225), (3, 6036075), (5, 3621645), (9, 2012025), (15, 1207215), (25, 724329), (27, 670675), (45, 402405), (75, 241443), (135, 134135), (139, 130275), (193, 93825), (225, 80481), (417, 43425), (579, 31275), (675, 26827), (695, 26055), (965, 18765), (1251, 14475), (1737, 10425), (2085, 8685), (2895, 6255), (3475, 5211), (3753, 4825)]