20512662490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{199909}}^1$

素因数の和:200278

約数の個数: 32

約数和(自身を含む): 38229189120

約数和(自身を除く): 17716526630

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 331, 662, 1655, 3310, 10261, 20522, 51305, 102610, 199909, 399818, 999545, 1999090, 6197179, 12394358, 30985895, 61971790, 66169879, 132339758, 330849395, 661698790, 2051266249, 4102532498, 10256331245, 20512662490]

約数ペア:

[(1, 20512662490), (2, 10256331245), (5, 4102532498), (10, 2051266249), (31, 661698790), (62, 330849395), (155, 132339758), (310, 66169879), (331, 61971790), (662, 30985895), (1655, 12394358), (3310, 6197179), (10261, 1999090), (20522, 999545), (51305, 399818), (102610, 199909)]