397345228

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{1999}}^1$

素因数の和:2270

約数の個数: 48

約数和(自身を含む): 824320000

約数和(自身を除く): 426974772

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 229, 434, 458, 868, 916, 1603, 1999, 3206, 3998, 6412, 7099, 7996, 13993, 14198, 27986, 28396, 49693, 55972, 61969, 99386, 123938, 198772, 247876, 433783, 457771, 867566, 915542, 1735132, 1831084, 3204397, 6408794, 12817588, 14190901, 28381802, 56763604, 99336307, 198672614, 397345228]

約数ペア:

[(1, 397345228), (2, 198672614), (4, 99336307), (7, 56763604), (14, 28381802), (28, 14190901), (31, 12817588), (62, 6408794), (124, 3204397), (217, 1831084), (229, 1735132), (434, 915542), (458, 867566), (868, 457771), (916, 433783), (1603, 247876), (1999, 198772), (3206, 123938), (3998, 99386), (6412, 61969), (7099, 55972), (7996, 49693), (13993, 28396), (14198, 27986)]