18910125

素因数分解:

$3^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 18829395

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 125, 135, 195, 225, 325, 351, 375, 431, 585, 675, 975, 1125, 1293, 1625, 1755, 2155, 2925, 3375, 3879, 4875, 5603, 6465, 8775, 10775, 11637, 14625, 16809, 19395, 28015, 32325, 43875, 50427, 53875, 58185, 84045, 96975, 140075, 151281, 161625, 252135, 290925, 420225, 484875, 700375, 756405, 1260675, 1454625, 2101125, 3782025, 6303375, 18910125]

約数ペア:

[(1, 18910125), (3, 6303375), (5, 3782025), (9, 2101125), (13, 1454625), (15, 1260675), (25, 756405), (27, 700375), (39, 484875), (45, 420225), (65, 290925), (75, 252135), (117, 161625), (125, 151281), (135, 140075), (195, 96975), (225, 84045), (325, 58185), (351, 53875), (375, 50427), (431, 43875), (585, 32325), (675, 28015), (975, 19395), (1125, 16809), (1293, 14625), (1625, 11637), (1755, 10775), (2155, 8775), (2925, 6465), (3375, 5603), (3879, 4875)]