16720875

素因数分解:

$3^2\times 5^3\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 30663360

約数和(自身を除く): 13942485

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 89, 125, 167, 225, 267, 375, 445, 501, 801, 835, 1125, 1335, 1503, 2225, 2505, 4005, 4175, 6675, 7515, 11125, 12525, 14863, 20025, 20875, 33375, 37575, 44589, 62625, 74315, 100125, 133767, 187875, 222945, 371575, 668835, 1114725, 1857875, 3344175, 5573625, 16720875]

約数ペア:

[(1, 16720875), (3, 5573625), (5, 3344175), (9, 1857875), (15, 1114725), (25, 668835), (45, 371575), (75, 222945), (89, 187875), (125, 133767), (167, 100125), (225, 74315), (267, 62625), (375, 44589), (445, 37575), (501, 33375), (801, 20875), (835, 20025), (1125, 14863), (1335, 12525), (1503, 11125), (2225, 7515), (2505, 6675), (4005, 4175)]