8239180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 18176256

約数和(自身を除く): 9937076

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 97, 124, 137, 155, 194, 274, 310, 388, 485, 548, 620, 685, 970, 1370, 1940, 2740, 3007, 4247, 6014, 8494, 12028, 13289, 15035, 16988, 21235, 26578, 30070, 42470, 53156, 60140, 66445, 84940, 132890, 265780, 411959, 823918, 1647836, 2059795, 4119590, 8239180]

約数ペア:

[(1, 8239180), (2, 4119590), (4, 2059795), (5, 1647836), (10, 823918), (20, 411959), (31, 265780), (62, 132890), (97, 84940), (124, 66445), (137, 60140), (155, 53156), (194, 42470), (274, 30070), (310, 26578), (388, 21235), (485, 16988), (548, 15035), (620, 13289), (685, 12028), (970, 8494), (1370, 6014), (1940, 4247), (2740, 3007)]