818805

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:70

約数の個数: 48

約数和(自身を含む): 1581120

約数和(自身を除く): 762315

約数列:

[1, 3, 5, 13, 15, 17, 19, 39, 51, 57, 65, 85, 95, 169, 195, 221, 247, 255, 285, 323, 507, 663, 741, 845, 969, 1105, 1235, 1615, 2535, 2873, 3211, 3315, 3705, 4199, 4845, 8619, 9633, 12597, 14365, 16055, 20995, 43095, 48165, 54587, 62985, 163761, 272935, 818805]

約数ペア:

[(1, 818805), (3, 272935), (5, 163761), (13, 62985), (15, 54587), (17, 48165), (19, 43095), (39, 20995), (51, 16055), (57, 14365), (65, 12597), (85, 9633), (95, 8619), (169, 4845), (195, 4199), (221, 3705), (247, 3315), (255, 3211), (285, 2873), (323, 2535), (507, 1615), (663, 1235), (741, 1105), (845, 969)]