78256990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{25999}}^1$

素因数の和:26056

約数の個数: 32

約数和(自身を含む): 164736000

約数和(自身を除く): 86479010

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 25999, 51998, 129995, 181993, 259990, 363986, 909965, 1117957, 1819930, 2235914, 5589785, 7825699, 11179570, 15651398, 39128495, 78256990]

約数ペア:

[(1, 78256990), (2, 39128495), (5, 15651398), (7, 11179570), (10, 7825699), (14, 5589785), (35, 2235914), (43, 1819930), (70, 1117957), (86, 909965), (215, 363986), (301, 259990), (430, 181993), (602, 129995), (1505, 51998), (3010, 25999)]