85780720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34589}}^1$

素因数の和:34633

約数の個数: 40

約数和(自身を含む): 205879680

約数和(自身を除く): 120098960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 34589, 69178, 138356, 172945, 276712, 345890, 553424, 691780, 1072259, 1383560, 2144518, 2767120, 4289036, 5361295, 8578072, 10722590, 17156144, 21445180, 42890360, 85780720]

約数ペア:

[(1, 85780720), (2, 42890360), (4, 21445180), (5, 17156144), (8, 10722590), (10, 8578072), (16, 5361295), (20, 4289036), (31, 2767120), (40, 2144518), (62, 1383560), (80, 1072259), (124, 691780), (155, 553424), (248, 345890), (310, 276712), (496, 172945), (620, 138356), (1240, 69178), (2480, 34589)]