81936400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2251}}^1$

素因数の和:2289

約数の個数: 120

約数和(自身を含む): 242387264

約数和(自身を除く): 160450864

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 175, 182, 200, 208, 260, 280, 325, 350, 364, 400, 455, 520, 560, 650, 700, 728, 910, 1040, 1300, 1400, 1456, 1820, 2251, 2275, 2600, 2800, 3640, 4502, 4550, 5200, 7280, 9004, 9100, 11255, 15757, 18008, 18200, 22510, 29263, 31514, 36016, 36400, 45020, 56275, 58526, 63028, 78785, 90040, 112550, 117052, 126056, 146315, 157570, 180080, 204841, 225100, 234104, 252112, 292630, 315140, 393925, 409682, 450200, 468208, 585260, 630280, 731575, 787850, 819364, 900400, 1024205, 1170520, 1260560, 1463150, 1575700, 1638728, 2048410, 2341040, 2926300, 3151400, 3277456, 4096820, 5121025, 5852600, 6302800, 8193640, 10242050, 11705200, 16387280, 20484100, 40968200, 81936400]

約数ペア:

[(1, 81936400), (2, 40968200), (4, 20484100), (5, 16387280), (7, 11705200), (8, 10242050), (10, 8193640), (13, 6302800), (14, 5852600), (16, 5121025), (20, 4096820), (25, 3277456), (26, 3151400), (28, 2926300), (35, 2341040), (40, 2048410), (50, 1638728), (52, 1575700), (56, 1463150), (65, 1260560), (70, 1170520), (80, 1024205), (91, 900400), (100, 819364), (104, 787850), (112, 731575), (130, 630280), (140, 585260), (175, 468208), (182, 450200), (200, 409682), (208, 393925), (260, 315140), (280, 292630), (325, 252112), (350, 234104), (364, 225100), (400, 204841), (455, 180080), (520, 157570), (560, 146315), (650, 126056), (700, 117052), (728, 112550), (910, 90040), (1040, 78785), (1300, 63028), (1400, 58526), (1456, 56275), (1820, 45020), (2251, 36400), (2275, 36016), (2600, 31514), (2800, 29263), (3640, 22510), (4502, 18200), (4550, 18008), (5200, 15757), (7280, 11255), (9004, 9100)]