331561520

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{42727}}^1$

素因数の和:42837

約数の個数: 40

約数和(自身を含む): 778845984

約数和(自身を除く): 447284464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 42727, 85454, 170908, 213635, 341816, 427270, 683632, 854540, 1709080, 3418160, 4144519, 8289038, 16578076, 20722595, 33156152, 41445190, 66312304, 82890380, 165780760, 331561520]

約数ペア:

[(1, 331561520), (2, 165780760), (4, 82890380), (5, 66312304), (8, 41445190), (10, 33156152), (16, 20722595), (20, 16578076), (40, 8289038), (80, 4144519), (97, 3418160), (194, 1709080), (388, 854540), (485, 683632), (776, 427270), (970, 341816), (1552, 213635), (1940, 170908), (3880, 85454), (7760, 42727)]