64408480

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21187}}^1$

素因数の和:21221

約数の個数: 48

約数和(自身を含む): 160181280

約数和(自身を除く): 95772800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 21187, 42374, 84748, 105935, 169496, 211870, 338992, 402553, 423740, 677984, 805106, 847480, 1610212, 1694960, 2012765, 3220424, 3389920, 4025530, 6440848, 8051060, 12881696, 16102120, 32204240, 64408480]

約数ペア:

[(1, 64408480), (2, 32204240), (4, 16102120), (5, 12881696), (8, 8051060), (10, 6440848), (16, 4025530), (19, 3389920), (20, 3220424), (32, 2012765), (38, 1694960), (40, 1610212), (76, 847480), (80, 805106), (95, 677984), (152, 423740), (160, 402553), (190, 338992), (304, 211870), (380, 169496), (608, 105935), (760, 84748), (1520, 42374), (3040, 21187)]