2227778920

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1\times {\mathrm{1823}}^1$

素因数の和:2194

約数の個数: 64

約数和(自身を含む): 5074513920

約数和(自身を除く): 2846735000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 223, 274, 446, 548, 685, 892, 1096, 1115, 1370, 1784, 1823, 2230, 2740, 3646, 4460, 5480, 7292, 8920, 9115, 14584, 18230, 30551, 36460, 61102, 72920, 122204, 152755, 244408, 249751, 305510, 406529, 499502, 611020, 813058, 999004, 1222040, 1248755, 1626116, 1998008, 2032645, 2497510, 3252232, 4065290, 4995020, 8130580, 9990040, 16261160, 55694473, 111388946, 222777892, 278472365, 445555784, 556944730, 1113889460, 2227778920]

約数ペア:

[(1, 2227778920), (2, 1113889460), (4, 556944730), (5, 445555784), (8, 278472365), (10, 222777892), (20, 111388946), (40, 55694473), (137, 16261160), (223, 9990040), (274, 8130580), (446, 4995020), (548, 4065290), (685, 3252232), (892, 2497510), (1096, 2032645), (1115, 1998008), (1370, 1626116), (1784, 1248755), (1823, 1222040), (2230, 999004), (2740, 813058), (3646, 611020), (4460, 499502), (5480, 406529), (7292, 305510), (8920, 249751), (9115, 244408), (14584, 152755), (18230, 122204), (30551, 72920), (36460, 61102)]