39207920

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1907}}^1$

素因数の和:2177

約数の個数: 40

約数和(自身を含む): 91561104

約数和(自身を除く): 52353184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 1907, 2056, 2570, 3814, 4112, 5140, 7628, 9535, 10280, 15256, 19070, 20560, 30512, 38140, 76280, 152560, 490099, 980198, 1960396, 2450495, 3920792, 4900990, 7841584, 9801980, 19603960, 39207920]

約数ペア:

[(1, 39207920), (2, 19603960), (4, 9801980), (5, 7841584), (8, 4900990), (10, 3920792), (16, 2450495), (20, 1960396), (40, 980198), (80, 490099), (257, 152560), (514, 76280), (1028, 38140), (1285, 30512), (1907, 20560), (2056, 19070), (2570, 15256), (3814, 10280), (4112, 9535), (5140, 7628)]