154818440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{78989}}^1$

素因数の和:79014

約数の個数: 48

約数和(自身を含む): 405218700

約数和(自身を除く): 250400260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 78989, 157978, 315956, 394945, 552923, 631912, 789890, 1105846, 1579780, 2211692, 2764615, 3159560, 3870461, 4423384, 5529230, 7740922, 11058460, 15481844, 19352305, 22116920, 30963688, 38704610, 77409220, 154818440]

約数ペア:

[(1, 154818440), (2, 77409220), (4, 38704610), (5, 30963688), (7, 22116920), (8, 19352305), (10, 15481844), (14, 11058460), (20, 7740922), (28, 5529230), (35, 4423384), (40, 3870461), (49, 3159560), (56, 2764615), (70, 2211692), (98, 1579780), (140, 1105846), (196, 789890), (245, 631912), (280, 552923), (392, 394945), (490, 315956), (980, 157978), (1960, 78989)]