18890636

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 37013760

約数和(自身を除く): 18123124

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 101, 107, 202, 214, 404, 428, 437, 874, 1748, 1919, 2033, 2323, 2461, 3838, 4066, 4646, 4922, 7676, 8132, 9292, 9844, 10807, 21614, 43228, 44137, 46759, 88274, 93518, 176548, 187036, 205333, 248561, 410666, 497122, 821332, 994244, 4722659, 9445318, 18890636]

約数ペア:

[(1, 18890636), (2, 9445318), (4, 4722659), (19, 994244), (23, 821332), (38, 497122), (46, 410666), (76, 248561), (92, 205333), (101, 187036), (107, 176548), (202, 93518), (214, 88274), (404, 46759), (428, 44137), (437, 43228), (874, 21614), (1748, 10807), (1919, 9844), (2033, 9292), (2323, 8132), (2461, 7676), (3838, 4922), (4066, 4646)]