156980920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{40459}}^1$

素因数の和:40567

約数の個数: 32

約数和(自身を含む): 356857200

約数和(自身を除く): 199876280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 40459, 80918, 161836, 202295, 323672, 404590, 809180, 1618360, 3924523, 7849046, 15698092, 19622615, 31396184, 39245230, 78490460, 156980920]

約数ペア:

[(1, 156980920), (2, 78490460), (4, 39245230), (5, 31396184), (8, 19622615), (10, 15698092), (20, 7849046), (40, 3924523), (97, 1618360), (194, 809180), (388, 404590), (485, 323672), (776, 202295), (970, 161836), (1940, 80918), (3880, 40459)]