61303940

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 131779200

約数和(自身を除く): 70475260

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 199, 211, 292, 365, 398, 422, 730, 796, 844, 995, 1055, 1460, 1990, 2110, 3980, 4220, 14527, 15403, 29054, 30806, 41989, 58108, 61612, 72635, 77015, 83978, 145270, 154030, 167956, 209945, 290540, 308060, 419890, 839780, 3065197, 6130394, 12260788, 15325985, 30651970, 61303940]

約数ペア:

[(1, 61303940), (2, 30651970), (4, 15325985), (5, 12260788), (10, 6130394), (20, 3065197), (73, 839780), (146, 419890), (199, 308060), (211, 290540), (292, 209945), (365, 167956), (398, 154030), (422, 145270), (730, 83978), (796, 77015), (844, 72635), (995, 61612), (1055, 58108), (1460, 41989), (1990, 30806), (2110, 29054), (3980, 15403), (4220, 14527)]