401620945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 535113216

約数和(自身を除く): 133492271

約数列:

[1, 5, 11, 55, 101, 197, 367, 505, 985, 1111, 1835, 2167, 4037, 5555, 10835, 19897, 20185, 37067, 72299, 99485, 185335, 218867, 361495, 407737, 795289, 1094335, 2038685, 3976445, 7302199, 36510995, 80324189, 401620945]

約数ペア:

[(1, 401620945), (5, 80324189), (11, 36510995), (55, 7302199), (101, 3976445), (197, 2038685), (367, 1094335), (505, 795289), (985, 407737), (1111, 361495), (1835, 218867), (2167, 185335), (4037, 99485), (5555, 72299), (10835, 37067), (19897, 20185)]