120597980

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 257476800

約数和(自身を除く): 136878820

約数列:

[1, 2, 4, 5, 10, 20, 157, 193, 199, 314, 386, 398, 628, 772, 785, 796, 965, 995, 1570, 1930, 1990, 3140, 3860, 3980, 30301, 31243, 38407, 60602, 62486, 76814, 121204, 124972, 151505, 153628, 156215, 192035, 303010, 312430, 384070, 606020, 624860, 768140, 6029899, 12059798, 24119596, 30149495, 60298990, 120597980]

約数ペア:

[(1, 120597980), (2, 60298990), (4, 30149495), (5, 24119596), (10, 12059798), (20, 6029899), (157, 768140), (193, 624860), (199, 606020), (314, 384070), (386, 312430), (398, 303010), (628, 192035), (772, 156215), (785, 153628), (796, 151505), (965, 124972), (995, 121204), (1570, 76814), (1930, 62486), (1990, 60602), (3140, 38407), (3860, 31243), (3980, 30301)]