78563860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 185068800

約数和(自身を除く): 106504940

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 89, 92, 95, 101, 115, 178, 190, 202, 230, 356, 380, 404, 437, 445, 460, 505, 874, 890, 1010, 1691, 1748, 1780, 1919, 2020, 2047, 2185, 2323, 3382, 3838, 4094, 4370, 4646, 6764, 7676, 8188, 8455, 8740, 8989, 9292, 9595, 10235, 11615, 16910, 17978, 19190, 20470, 23230, 33820, 35956, 38380, 38893, 40940, 44137, 44945, 46460, 77786, 88274, 89890, 155572, 170791, 176548, 179780, 194465, 206747, 220685, 341582, 388930, 413494, 441370, 683164, 777860, 826988, 853955, 882740, 1033735, 1707910, 2067470, 3415820, 3928193, 4134940, 7856386, 15712772, 19640965, 39281930, 78563860]

約数ペア:

[(1, 78563860), (2, 39281930), (4, 19640965), (5, 15712772), (10, 7856386), (19, 4134940), (20, 3928193), (23, 3415820), (38, 2067470), (46, 1707910), (76, 1033735), (89, 882740), (92, 853955), (95, 826988), (101, 777860), (115, 683164), (178, 441370), (190, 413494), (202, 388930), (230, 341582), (356, 220685), (380, 206747), (404, 194465), (437, 179780), (445, 176548), (460, 170791), (505, 155572), (874, 89890), (890, 88274), (1010, 77786), (1691, 46460), (1748, 44945), (1780, 44137), (1919, 40940), (2020, 38893), (2047, 38380), (2185, 35956), (2323, 33820), (3382, 23230), (3838, 20470), (4094, 19190), (4370, 17978), (4646, 16910), (6764, 11615), (7676, 10235), (8188, 9595), (8455, 9292), (8740, 8989)]