2154179975

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 2812320000

約数和(自身を除く): 658140025

約数列:

[1, 5, 25, 41, 59, 179, 199, 205, 295, 895, 995, 1025, 1475, 2419, 4475, 4975, 7339, 8159, 10561, 11741, 12095, 35621, 36695, 40795, 52805, 58705, 60475, 178105, 183475, 203975, 264025, 293525, 433001, 481381, 890525, 1460461, 2101639, 2165005, 2406905, 7302305, 10508195, 10825025, 12034525, 36511525, 52540975, 86167199, 430835995, 2154179975]

約数ペア:

[(1, 2154179975), (5, 430835995), (25, 86167199), (41, 52540975), (59, 36511525), (179, 12034525), (199, 10825025), (205, 10508195), (295, 7302305), (895, 2406905), (995, 2165005), (1025, 2101639), (1475, 1460461), (2419, 890525), (4475, 481381), (4975, 433001), (7339, 293525), (8159, 264025), (10561, 203975), (11741, 183475), (12095, 178105), (35621, 60475), (36695, 58705), (40795, 52805)]