128519180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{2137}}^1$

素因数の和:2274

約数の個数: 48

約数和(自身を含む): 281600256

約数和(自身を除く): 153081076

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 97, 124, 155, 194, 310, 388, 485, 620, 970, 1940, 2137, 3007, 4274, 6014, 8548, 10685, 12028, 15035, 21370, 30070, 42740, 60140, 66247, 132494, 207289, 264988, 331235, 414578, 662470, 829156, 1036445, 1324940, 2072890, 4145780, 6425959, 12851918, 25703836, 32129795, 64259590, 128519180]

約数ペア:

[(1, 128519180), (2, 64259590), (4, 32129795), (5, 25703836), (10, 12851918), (20, 6425959), (31, 4145780), (62, 2072890), (97, 1324940), (124, 1036445), (155, 829156), (194, 662470), (310, 414578), (388, 331235), (485, 264988), (620, 207289), (970, 132494), (1940, 66247), (2137, 60140), (3007, 42740), (4274, 30070), (6014, 21370), (8548, 15035), (10685, 12028)]