25656009520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5257379}}^1$

素因数の和:5257453

約数の個数: 40

約数和(自身を含む): 60628106160

約数和(自身を除く): 34972096640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 5257379, 10514758, 21029516, 26286895, 42059032, 52573790, 84118064, 105147580, 210295160, 320700119, 420590320, 641400238, 1282800476, 1603500595, 2565600952, 3207001190, 5131201904, 6414002380, 12828004760, 25656009520]

約数ペア:

[(1, 25656009520), (2, 12828004760), (4, 6414002380), (5, 5131201904), (8, 3207001190), (10, 2565600952), (16, 1603500595), (20, 1282800476), (40, 641400238), (61, 420590320), (80, 320700119), (122, 210295160), (244, 105147580), (305, 84118064), (488, 52573790), (610, 42059032), (976, 26286895), (1220, 21029516), (2440, 10514758), (4880, 5257379)]