64105520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25849}}^1$

素因数の和:25893

約数の個数: 40

約数和(自身を含む): 153859200

約数和(自身を除く): 89753680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 25849, 51698, 103396, 129245, 206792, 258490, 413584, 516980, 801319, 1033960, 1602638, 2067920, 3205276, 4006595, 6410552, 8013190, 12821104, 16026380, 32052760, 64105520]

約数ペア:

[(1, 64105520), (2, 32052760), (4, 16026380), (5, 12821104), (8, 8013190), (10, 6410552), (16, 4006595), (20, 3205276), (31, 2067920), (40, 1602638), (62, 1033960), (80, 801319), (124, 516980), (155, 413584), (248, 258490), (310, 206792), (496, 129245), (620, 103396), (1240, 51698), (2480, 25849)]