9018020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 20865600

約数和(自身を除く): 11847580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 229, 358, 458, 716, 895, 916, 1145, 1790, 1969, 2290, 2519, 3580, 3938, 4580, 5038, 7876, 9845, 10076, 12595, 19690, 25190, 39380, 40991, 50380, 81982, 163964, 204955, 409910, 450901, 819820, 901802, 1803604, 2254505, 4509010, 9018020]

約数ペア:

[(1, 9018020), (2, 4509010), (4, 2254505), (5, 1803604), (10, 901802), (11, 819820), (20, 450901), (22, 409910), (44, 204955), (55, 163964), (110, 81982), (179, 50380), (220, 40991), (229, 39380), (358, 25190), (458, 19690), (716, 12595), (895, 10076), (916, 9845), (1145, 7876), (1790, 5038), (1969, 4580), (2290, 3938), (2519, 3580)]