31207215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8423}}^1$

素因数の和:8463

約数の個数: 32

約数和(自身を含む): 56609280

約数和(自身を除く): 25402065

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 8423, 25269, 42115, 109499, 126345, 160037, 328497, 480111, 547495, 800185, 1642485, 2080481, 2400555, 6241443, 10402405, 31207215]

約数ペア:

[(1, 31207215), (3, 10402405), (5, 6241443), (13, 2400555), (15, 2080481), (19, 1642485), (39, 800185), (57, 547495), (65, 480111), (95, 328497), (195, 160037), (247, 126345), (285, 109499), (741, 42115), (1235, 25269), (3705, 8423)]