209919520

素因数分解:

$2^5\times 5^1\times {\mathrm{751}}^1\times {\mathrm{1747}}^1$

素因数の和:2513

約数の個数: 48

約数和(自身を含む): 496879488

約数和(自身を除く): 286959968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 751, 1502, 1747, 3004, 3494, 3755, 6008, 6988, 7510, 8735, 12016, 13976, 15020, 17470, 24032, 27952, 30040, 34940, 55904, 60080, 69880, 120160, 139760, 279520, 1311997, 2623994, 5247988, 6559985, 10495976, 13119970, 20991952, 26239940, 41983904, 52479880, 104959760, 209919520]

約数ペア:

[(1, 209919520), (2, 104959760), (4, 52479880), (5, 41983904), (8, 26239940), (10, 20991952), (16, 13119970), (20, 10495976), (32, 6559985), (40, 5247988), (80, 2623994), (160, 1311997), (751, 279520), (1502, 139760), (1747, 120160), (3004, 69880), (3494, 60080), (3755, 55904), (6008, 34940), (6988, 30040), (7510, 27952), (8735, 24032), (12016, 17470), (13976, 15020)]