128887500

素因数分解:

$2^2\times 3^1\times 5^5\times 7^1\times {\mathrm{491}}^1$

素因数の和:530

約数の個数: 144

約数和(自身を含む): 430472448

約数和(自身を除く): 301584948

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, 125, 140, 150, 175, 210, 250, 300, 350, 375, 420, 491, 500, 525, 625, 700, 750, 875, 982, 1050, 1250, 1473, 1500, 1750, 1875, 1964, 2100, 2455, 2500, 2625, 2946, 3125, 3437, 3500, 3750, 4375, 4910, 5250, 5892, 6250, 6874, 7365, 7500, 8750, 9375, 9820, 10311, 10500, 12275, 12500, 13125, 13748, 14730, 17185, 17500, 18750, 20622, 21875, 24550, 26250, 29460, 34370, 36825, 37500, 41244, 43750, 49100, 51555, 52500, 61375, 65625, 68740, 73650, 85925, 87500, 103110, 122750, 131250, 147300, 171850, 184125, 206220, 245500, 257775, 262500, 306875, 343700, 368250, 429625, 515550, 613750, 736500, 859250, 920625, 1031100, 1227500, 1288875, 1534375, 1718500, 1841250, 2148125, 2577750, 3068750, 3682500, 4296250, 4603125, 5155500, 6137500, 6444375, 8592500, 9206250, 10740625, 12888750, 18412500, 21481250, 25777500, 32221875, 42962500, 64443750, 128887500]

約数ペア:

[(1, 128887500), (2, 64443750), (3, 42962500), (4, 32221875), (5, 25777500), (6, 21481250), (7, 18412500), (10, 12888750), (12, 10740625), (14, 9206250), (15, 8592500), (20, 6444375), (21, 6137500), (25, 5155500), (28, 4603125), (30, 4296250), (35, 3682500), (42, 3068750), (50, 2577750), (60, 2148125), (70, 1841250), (75, 1718500), (84, 1534375), (100, 1288875), (105, 1227500), (125, 1031100), (140, 920625), (150, 859250), (175, 736500), (210, 613750), (250, 515550), (300, 429625), (350, 368250), (375, 343700), (420, 306875), (491, 262500), (500, 257775), (525, 245500), (625, 206220), (700, 184125), (750, 171850), (875, 147300), (982, 131250), (1050, 122750), (1250, 103110), (1473, 87500), (1500, 85925), (1750, 73650), (1875, 68740), (1964, 65625), (2100, 61375), (2455, 52500), (2500, 51555), (2625, 49100), (2946, 43750), (3125, 41244), (3437, 37500), (3500, 36825), (3750, 34370), (4375, 29460), (4910, 26250), (5250, 24550), (5892, 21875), (6250, 20622), (6874, 18750), (7365, 17500), (7500, 17185), (8750, 14730), (9375, 13748), (9820, 13125), (10311, 12500), (10500, 12275)]