220745

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:89

約数の個数: 24

約数和(自身を含む): 332424

約数和(自身を除く): 111679

約数列:

[1, 5, 7, 17, 35, 49, 53, 85, 119, 245, 265, 371, 595, 833, 901, 1855, 2597, 4165, 4505, 6307, 12985, 31535, 44149, 220745]

約数ペア:

[(1, 220745), (5, 44149), (7, 31535), (17, 12985), (35, 6307), (49, 4505), (53, 4165), (85, 2597), (119, 1855), (245, 901), (265, 833), (371, 595)]