1213520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 3535488

約数和(自身を除く): 2321968

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 197, 220, 280, 308, 385, 394, 440, 560, 616, 770, 788, 880, 985, 1232, 1379, 1540, 1576, 1970, 2167, 2758, 3080, 3152, 3940, 4334, 5516, 6160, 6895, 7880, 8668, 10835, 11032, 13790, 15169, 15760, 17336, 21670, 22064, 27580, 30338, 34672, 43340, 55160, 60676, 75845, 86680, 110320, 121352, 151690, 173360, 242704, 303380, 606760, 1213520]

約数ペア:

[(1, 1213520), (2, 606760), (4, 303380), (5, 242704), (7, 173360), (8, 151690), (10, 121352), (11, 110320), (14, 86680), (16, 75845), (20, 60676), (22, 55160), (28, 43340), (35, 34672), (40, 30338), (44, 27580), (55, 22064), (56, 21670), (70, 17336), (77, 15760), (80, 15169), (88, 13790), (110, 11032), (112, 10835), (140, 8668), (154, 7880), (176, 6895), (197, 6160), (220, 5516), (280, 4334), (308, 3940), (385, 3152), (394, 3080), (440, 2758), (560, 2167), (616, 1970), (770, 1576), (788, 1540), (880, 1379), (985, 1232)]