85678040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1949}}^1$

素因数の和:2124

約数の個数: 64

約数和(自身を含む): 221832000

約数和(自身を除く): 136153960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1570, 1949, 2198, 3140, 3898, 4396, 5495, 6280, 7796, 8792, 9745, 10990, 13643, 15592, 19490, 21980, 27286, 38980, 43960, 54572, 68215, 77960, 109144, 136430, 272860, 305993, 545720, 611986, 1223972, 1529965, 2141951, 2447944, 3059930, 4283902, 6119860, 8567804, 10709755, 12239720, 17135608, 21419510, 42839020, 85678040]

約数ペア:

[(1, 85678040), (2, 42839020), (4, 21419510), (5, 17135608), (7, 12239720), (8, 10709755), (10, 8567804), (14, 6119860), (20, 4283902), (28, 3059930), (35, 2447944), (40, 2141951), (56, 1529965), (70, 1223972), (140, 611986), (157, 545720), (280, 305993), (314, 272860), (628, 136430), (785, 109144), (1099, 77960), (1256, 68215), (1570, 54572), (1949, 43960), (2198, 38980), (3140, 27286), (3898, 21980), (4396, 19490), (5495, 15592), (6280, 13643), (7796, 10990), (8792, 9745)]