19647530

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 41651496

約数和(自身を除く): 22003966

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 101, 202, 245, 397, 490, 505, 707, 794, 1010, 1414, 1985, 2779, 3535, 3970, 4949, 5558, 7070, 9898, 13895, 19453, 24745, 27790, 38906, 40097, 49490, 80194, 97265, 194530, 200485, 280679, 400970, 561358, 1403395, 1964753, 2806790, 3929506, 9823765, 19647530]

約数ペア:

[(1, 19647530), (2, 9823765), (5, 3929506), (7, 2806790), (10, 1964753), (14, 1403395), (35, 561358), (49, 400970), (70, 280679), (98, 200485), (101, 194530), (202, 97265), (245, 80194), (397, 49490), (490, 40097), (505, 38906), (707, 27790), (794, 24745), (1010, 19453), (1414, 13895), (1985, 9898), (2779, 7070), (3535, 5558), (3970, 4949)]