20281500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4507}}^1$

素因数の和:4532

約数の個数: 72

約数和(自身を含む): 63995568

約数和(自身を除く): 43714068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4507, 9014, 13521, 18028, 22535, 27042, 40563, 45070, 54084, 67605, 81126, 90140, 112675, 135210, 162252, 202815, 225350, 270420, 338025, 405630, 450700, 563375, 676050, 811260, 1014075, 1126750, 1352100, 1690125, 2028150, 2253500, 3380250, 4056300, 5070375, 6760500, 10140750, 20281500]

約数ペア:

[(1, 20281500), (2, 10140750), (3, 6760500), (4, 5070375), (5, 4056300), (6, 3380250), (9, 2253500), (10, 2028150), (12, 1690125), (15, 1352100), (18, 1126750), (20, 1014075), (25, 811260), (30, 676050), (36, 563375), (45, 450700), (50, 405630), (60, 338025), (75, 270420), (90, 225350), (100, 202815), (125, 162252), (150, 135210), (180, 112675), (225, 90140), (250, 81126), (300, 67605), (375, 54084), (450, 45070), (500, 40563), (750, 27042), (900, 22535), (1125, 18028), (1500, 13521), (2250, 9014), (4500, 4507)]