77409220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{78989}}^1$

素因数の和:79012

約数の個数: 36

約数和(自身を含む): 189102060

約数和(自身を除く): 111692840

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 78989, 157978, 315956, 394945, 552923, 789890, 1105846, 1579780, 2211692, 2764615, 3870461, 5529230, 7740922, 11058460, 15481844, 19352305, 38704610, 77409220]

約数ペア:

[(1, 77409220), (2, 38704610), (4, 19352305), (5, 15481844), (7, 11058460), (10, 7740922), (14, 5529230), (20, 3870461), (28, 2764615), (35, 2211692), (49, 1579780), (70, 1105846), (98, 789890), (140, 552923), (196, 394945), (245, 315956), (490, 157978), (980, 78989)]