230765240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1249}}^1$

素因数の和:1440

約数の個数: 64

約数和(自身を含む): 540000000

約数和(自身を除く): 309234760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 149, 155, 248, 298, 310, 596, 620, 745, 1192, 1240, 1249, 1490, 2498, 2980, 4619, 4996, 5960, 6245, 9238, 9992, 12490, 18476, 23095, 24980, 36952, 38719, 46190, 49960, 77438, 92380, 154876, 184760, 186101, 193595, 309752, 372202, 387190, 744404, 774380, 930505, 1488808, 1548760, 1861010, 3722020, 5769131, 7444040, 11538262, 23076524, 28845655, 46153048, 57691310, 115382620, 230765240]

約数ペア:

[(1, 230765240), (2, 115382620), (4, 57691310), (5, 46153048), (8, 28845655), (10, 23076524), (20, 11538262), (31, 7444040), (40, 5769131), (62, 3722020), (124, 1861010), (149, 1548760), (155, 1488808), (248, 930505), (298, 774380), (310, 744404), (596, 387190), (620, 372202), (745, 309752), (1192, 193595), (1240, 186101), (1249, 184760), (1490, 154876), (2498, 92380), (2980, 77438), (4619, 49960), (4996, 46190), (5960, 38719), (6245, 36952), (9238, 24980), (9992, 23095), (12490, 18476)]