309995000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:571

約数の個数: 160

約数和(自身を含む): 880593120

約数和(自身を除く): 570598120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 85, 100, 119, 125, 136, 140, 170, 175, 200, 238, 250, 280, 340, 350, 425, 476, 500, 521, 595, 625, 680, 700, 850, 875, 952, 1000, 1042, 1190, 1250, 1400, 1700, 1750, 2084, 2125, 2380, 2500, 2605, 2975, 3400, 3500, 3647, 4168, 4250, 4375, 4760, 5000, 5210, 5950, 7000, 7294, 8500, 8750, 8857, 10420, 10625, 11900, 13025, 14588, 14875, 17000, 17500, 17714, 18235, 20840, 21250, 23800, 26050, 29176, 29750, 35000, 35428, 36470, 42500, 44285, 52100, 59500, 61999, 65125, 70856, 72940, 74375, 85000, 88570, 91175, 104200, 119000, 123998, 130250, 145880, 148750, 177140, 182350, 221425, 247996, 260500, 297500, 309995, 325625, 354280, 364700, 442850, 455875, 495992, 521000, 595000, 619990, 651250, 729400, 885700, 911750, 1107125, 1239980, 1302500, 1549975, 1771400, 1823500, 2214250, 2279375, 2479960, 2605000, 3099950, 3647000, 4428500, 4558750, 5535625, 6199900, 7749875, 8857000, 9117500, 11071250, 12399800, 15499750, 18235000, 22142500, 30999500, 38749375, 44285000, 61999000, 77498750, 154997500, 309995000]

約数ペア:

[(1, 309995000), (2, 154997500), (4, 77498750), (5, 61999000), (7, 44285000), (8, 38749375), (10, 30999500), (14, 22142500), (17, 18235000), (20, 15499750), (25, 12399800), (28, 11071250), (34, 9117500), (35, 8857000), (40, 7749875), (50, 6199900), (56, 5535625), (68, 4558750), (70, 4428500), (85, 3647000), (100, 3099950), (119, 2605000), (125, 2479960), (136, 2279375), (140, 2214250), (170, 1823500), (175, 1771400), (200, 1549975), (238, 1302500), (250, 1239980), (280, 1107125), (340, 911750), (350, 885700), (425, 729400), (476, 651250), (500, 619990), (521, 595000), (595, 521000), (625, 495992), (680, 455875), (700, 442850), (850, 364700), (875, 354280), (952, 325625), (1000, 309995), (1042, 297500), (1190, 260500), (1250, 247996), (1400, 221425), (1700, 182350), (1750, 177140), (2084, 148750), (2125, 145880), (2380, 130250), (2500, 123998), (2605, 119000), (2975, 104200), (3400, 91175), (3500, 88570), (3647, 85000), (4168, 74375), (4250, 72940), (4375, 70856), (4760, 65125), (5000, 61999), (5210, 59500), (5950, 52100), (7000, 44285), (7294, 42500), (8500, 36470), (8750, 35428), (8857, 35000), (10420, 29750), (10625, 29176), (11900, 26050), (13025, 23800), (14588, 21250), (14875, 20840), (17000, 18235), (17500, 17714)]