19851104320

素因数分解:

$2^6\times 5^1\times {\mathrm{97}}^1\times {\mathrm{639533}}^1$

素因数の和:639647

約数の個数: 56

約数和(自身を含む): 47757840984

約数和(自身を除く): 27906736664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 160, 194, 320, 388, 485, 776, 970, 1552, 1940, 3104, 3880, 6208, 7760, 15520, 31040, 639533, 1279066, 2558132, 3197665, 5116264, 6395330, 10232528, 12790660, 20465056, 25581320, 40930112, 51162640, 62034701, 102325280, 124069402, 204650560, 248138804, 310173505, 496277608, 620347010, 992555216, 1240694020, 1985110432, 2481388040, 3970220864, 4962776080, 9925552160, 19851104320]

約数ペア:

[(1, 19851104320), (2, 9925552160), (4, 4962776080), (5, 3970220864), (8, 2481388040), (10, 1985110432), (16, 1240694020), (20, 992555216), (32, 620347010), (40, 496277608), (64, 310173505), (80, 248138804), (97, 204650560), (160, 124069402), (194, 102325280), (320, 62034701), (388, 51162640), (485, 40930112), (776, 25581320), (970, 20465056), (1552, 12790660), (1940, 10232528), (3104, 6395330), (3880, 5116264), (6208, 3197665), (7760, 2558132), (15520, 1279066), (31040, 639533)]