20418150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4391}}^1$

素因数の和:4437

約数の個数: 48

約数和(自身を含む): 52282368

約数和(自身を除く): 31864218

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 775, 930, 1550, 2325, 4391, 4650, 8782, 13173, 21955, 26346, 43910, 65865, 109775, 131730, 136121, 219550, 272242, 329325, 408363, 658650, 680605, 816726, 1361210, 2041815, 3403025, 4083630, 6806050, 10209075, 20418150]

約数ペア:

[(1, 20418150), (2, 10209075), (3, 6806050), (5, 4083630), (6, 3403025), (10, 2041815), (15, 1361210), (25, 816726), (30, 680605), (31, 658650), (50, 408363), (62, 329325), (75, 272242), (93, 219550), (150, 136121), (155, 131730), (186, 109775), (310, 65865), (465, 43910), (775, 26346), (930, 21955), (1550, 13173), (2325, 8782), (4391, 4650)]