128849950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{857}}^1$

素因数の和:997

約数の個数: 48

約数和(自身を含む): 250233984

約数和(自身を除く): 121384034

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 97, 155, 194, 310, 485, 775, 857, 970, 1550, 1714, 2425, 3007, 4285, 4850, 6014, 8570, 15035, 21425, 26567, 30070, 42850, 53134, 75175, 83129, 132835, 150350, 166258, 265670, 415645, 664175, 831290, 1328350, 2078225, 2576999, 4156450, 5153998, 12884995, 25769990, 64424975, 128849950]

約数ペア:

[(1, 128849950), (2, 64424975), (5, 25769990), (10, 12884995), (25, 5153998), (31, 4156450), (50, 2576999), (62, 2078225), (97, 1328350), (155, 831290), (194, 664175), (310, 415645), (485, 265670), (775, 166258), (857, 150350), (970, 132835), (1550, 83129), (1714, 75175), (2425, 53134), (3007, 42850), (4285, 30070), (4850, 26567), (6014, 21425), (8570, 15035)]