8819860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{863}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 21482496

約数和(自身を除く): 12662636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 863, 1022, 1460, 1726, 2044, 2555, 3452, 4315, 5110, 6041, 8630, 10220, 12082, 17260, 24164, 30205, 60410, 62999, 120820, 125998, 251996, 314995, 440993, 629990, 881986, 1259980, 1763972, 2204965, 4409930, 8819860]

約数ペア:

[(1, 8819860), (2, 4409930), (4, 2204965), (5, 1763972), (7, 1259980), (10, 881986), (14, 629990), (20, 440993), (28, 314995), (35, 251996), (70, 125998), (73, 120820), (140, 62999), (146, 60410), (292, 30205), (365, 24164), (511, 17260), (730, 12082), (863, 10220), (1022, 8630), (1460, 6041), (1726, 5110), (2044, 4315), (2555, 3452)]