78321680

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10093}}^1$

素因数の和:10203

約数の個数: 40

約数和(自身を含む): 183993432

約数和(自身を除く): 105671752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 10093, 20186, 40372, 50465, 80744, 100930, 161488, 201860, 403720, 807440, 979021, 1958042, 3916084, 4895105, 7832168, 9790210, 15664336, 19580420, 39160840, 78321680]

約数ペア:

[(1, 78321680), (2, 39160840), (4, 19580420), (5, 15664336), (8, 9790210), (10, 7832168), (16, 4895105), (20, 3916084), (40, 1958042), (80, 979021), (97, 807440), (194, 403720), (388, 201860), (485, 161488), (776, 100930), (970, 80744), (1552, 50465), (1940, 40372), (3880, 20186), (7760, 10093)]