20227875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 17511645

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 125, 167, 255, 285, 323, 375, 425, 475, 501, 835, 969, 1275, 1425, 1615, 2125, 2375, 2505, 2839, 3173, 4175, 4845, 6375, 7125, 8075, 8517, 9519, 12525, 14195, 15865, 20875, 24225, 40375, 42585, 47595, 53941, 62625, 70975, 79325, 121125, 161823, 212925, 237975, 269705, 354875, 396625, 809115, 1064625, 1189875, 1348525, 4045575, 6742625, 20227875]

約数ペア:

[(1, 20227875), (3, 6742625), (5, 4045575), (15, 1348525), (17, 1189875), (19, 1064625), (25, 809115), (51, 396625), (57, 354875), (75, 269705), (85, 237975), (95, 212925), (125, 161823), (167, 121125), (255, 79325), (285, 70975), (323, 62625), (375, 53941), (425, 47595), (475, 42585), (501, 40375), (835, 24225), (969, 20875), (1275, 15865), (1425, 14195), (1615, 12525), (2125, 9519), (2375, 8517), (2505, 8075), (2839, 7125), (3173, 6375), (4175, 4845)]