248601980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{1979}}^1$

素因数の和:2570

約数の個数: 48

約数和(自身を含む): 570810240

約数和(自身を除く): 322208260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 571, 1142, 1979, 2284, 2855, 3958, 5710, 6281, 7916, 9895, 11420, 12562, 19790, 21769, 25124, 31405, 39580, 43538, 62810, 87076, 108845, 125620, 217690, 435380, 1130009, 2260018, 4520036, 5650045, 11300090, 12430099, 22600180, 24860198, 49720396, 62150495, 124300990, 248601980]

約数ペア:

[(1, 248601980), (2, 124300990), (4, 62150495), (5, 49720396), (10, 24860198), (11, 22600180), (20, 12430099), (22, 11300090), (44, 5650045), (55, 4520036), (110, 2260018), (220, 1130009), (571, 435380), (1142, 217690), (1979, 125620), (2284, 108845), (2855, 87076), (3958, 62810), (5710, 43538), (6281, 39580), (7916, 31405), (9895, 25124), (11420, 21769), (12562, 19790)]