21122500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:119

約数の個数: 120

約数和(自身を含む): 56681856

約数和(自身を除く): 35559356

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 71, 85, 100, 119, 125, 140, 142, 170, 175, 238, 250, 284, 340, 350, 355, 425, 476, 497, 500, 595, 625, 700, 710, 850, 875, 994, 1190, 1207, 1250, 1420, 1700, 1750, 1775, 1988, 2125, 2380, 2414, 2485, 2500, 2975, 3500, 3550, 4250, 4375, 4828, 4970, 5950, 6035, 7100, 8449, 8500, 8750, 8875, 9940, 10625, 11900, 12070, 12425, 14875, 16898, 17500, 17750, 21250, 24140, 24850, 29750, 30175, 33796, 35500, 42245, 42500, 44375, 49700, 59500, 60350, 62125, 74375, 84490, 88750, 120700, 124250, 148750, 150875, 168980, 177500, 211225, 248500, 297500, 301750, 310625, 422450, 603500, 621250, 754375, 844900, 1056125, 1242500, 1508750, 2112250, 3017500, 4224500, 5280625, 10561250, 21122500]

約数ペア:

[(1, 21122500), (2, 10561250), (4, 5280625), (5, 4224500), (7, 3017500), (10, 2112250), (14, 1508750), (17, 1242500), (20, 1056125), (25, 844900), (28, 754375), (34, 621250), (35, 603500), (50, 422450), (68, 310625), (70, 301750), (71, 297500), (85, 248500), (100, 211225), (119, 177500), (125, 168980), (140, 150875), (142, 148750), (170, 124250), (175, 120700), (238, 88750), (250, 84490), (284, 74375), (340, 62125), (350, 60350), (355, 59500), (425, 49700), (476, 44375), (497, 42500), (500, 42245), (595, 35500), (625, 33796), (700, 30175), (710, 29750), (850, 24850), (875, 24140), (994, 21250), (1190, 17750), (1207, 17500), (1250, 16898), (1420, 14875), (1700, 12425), (1750, 12070), (1775, 11900), (1988, 10625), (2125, 9940), (2380, 8875), (2414, 8750), (2485, 8500), (2500, 8449), (2975, 7100), (3500, 6035), (3550, 5950), (4250, 4970), (4375, 4828)]