89870420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1741}}^1$

素因数の和:1868

約数の個数: 48

約数和(自身を含む): 197542800

約数和(自身を除く): 107672380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 89, 116, 145, 178, 290, 356, 445, 580, 890, 1741, 1780, 2581, 3482, 5162, 6964, 8705, 10324, 12905, 17410, 25810, 34820, 50489, 51620, 100978, 154949, 201956, 252445, 309898, 504890, 619796, 774745, 1009780, 1549490, 3098980, 4493521, 8987042, 17974084, 22467605, 44935210, 89870420]

約数ペア:

[(1, 89870420), (2, 44935210), (4, 22467605), (5, 17974084), (10, 8987042), (20, 4493521), (29, 3098980), (58, 1549490), (89, 1009780), (116, 774745), (145, 619796), (178, 504890), (290, 309898), (356, 252445), (445, 201956), (580, 154949), (890, 100978), (1741, 51620), (1780, 50489), (2581, 34820), (3482, 25810), (5162, 17410), (6964, 12905), (8705, 10324)]