881240920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{12539}}^1$

素因数の和:12808

約数の個数: 64

約数和(自身を含む): 2275257600

約数和(自身を除く): 1394016680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 502, 1004, 1255, 1757, 2008, 2510, 3514, 5020, 7028, 8785, 10040, 12539, 14056, 17570, 25078, 35140, 50156, 62695, 70280, 87773, 100312, 125390, 175546, 250780, 351092, 438865, 501560, 702184, 877730, 1755460, 3147289, 3510920, 6294578, 12589156, 15736445, 22031023, 25178312, 31472890, 44062046, 62945780, 88124092, 110155115, 125891560, 176248184, 220310230, 440620460, 881240920]

約数ペア:

[(1, 881240920), (2, 440620460), (4, 220310230), (5, 176248184), (7, 125891560), (8, 110155115), (10, 88124092), (14, 62945780), (20, 44062046), (28, 31472890), (35, 25178312), (40, 22031023), (56, 15736445), (70, 12589156), (140, 6294578), (251, 3510920), (280, 3147289), (502, 1755460), (1004, 877730), (1255, 702184), (1757, 501560), (2008, 438865), (2510, 351092), (3514, 250780), (5020, 175546), (7028, 125390), (8785, 100312), (10040, 87773), (12539, 70280), (14056, 62695), (17570, 50156), (25078, 35140)]