28612500

素因数分解:

$2^2\times 3^1\times 5^5\times 7^1\times {\mathrm{109}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 96243840

約数和(自身を除く): 67631340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 109, 125, 140, 150, 175, 210, 218, 250, 300, 327, 350, 375, 420, 436, 500, 525, 545, 625, 654, 700, 750, 763, 875, 1050, 1090, 1250, 1308, 1500, 1526, 1635, 1750, 1875, 2100, 2180, 2289, 2500, 2625, 2725, 3052, 3125, 3270, 3500, 3750, 3815, 4375, 4578, 5250, 5450, 6250, 6540, 7500, 7630, 8175, 8750, 9156, 9375, 10500, 10900, 11445, 12500, 13125, 13625, 15260, 16350, 17500, 18750, 19075, 21875, 22890, 26250, 27250, 32700, 37500, 38150, 40875, 43750, 45780, 52500, 54500, 57225, 65625, 68125, 76300, 81750, 87500, 95375, 114450, 131250, 136250, 163500, 190750, 204375, 228900, 262500, 272500, 286125, 340625, 381500, 408750, 476875, 572250, 681250, 817500, 953750, 1021875, 1144500, 1362500, 1430625, 1907500, 2043750, 2384375, 2861250, 4087500, 4768750, 5722500, 7153125, 9537500, 14306250, 28612500]

約数ペア:

[(1, 28612500), (2, 14306250), (3, 9537500), (4, 7153125), (5, 5722500), (6, 4768750), (7, 4087500), (10, 2861250), (12, 2384375), (14, 2043750), (15, 1907500), (20, 1430625), (21, 1362500), (25, 1144500), (28, 1021875), (30, 953750), (35, 817500), (42, 681250), (50, 572250), (60, 476875), (70, 408750), (75, 381500), (84, 340625), (100, 286125), (105, 272500), (109, 262500), (125, 228900), (140, 204375), (150, 190750), (175, 163500), (210, 136250), (218, 131250), (250, 114450), (300, 95375), (327, 87500), (350, 81750), (375, 76300), (420, 68125), (436, 65625), (500, 57225), (525, 54500), (545, 52500), (625, 45780), (654, 43750), (700, 40875), (750, 38150), (763, 37500), (875, 32700), (1050, 27250), (1090, 26250), (1250, 22890), (1308, 21875), (1500, 19075), (1526, 18750), (1635, 17500), (1750, 16350), (1875, 15260), (2100, 13625), (2180, 13125), (2289, 12500), (2500, 11445), (2625, 10900), (2725, 10500), (3052, 9375), (3125, 9156), (3270, 8750), (3500, 8175), (3750, 7630), (3815, 7500), (4375, 6540), (4578, 6250), (5250, 5450)]