61971790

素因数分解:

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

素因数の和:199947

約数の個数: 16

約数和(自身を含む): 115148160

約数和(自身を除く): 53176370

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 199909, 399818, 999545, 1999090, 6197179, 12394358, 30985895, 61971790]

約数ペア:

[(1, 61971790), (2, 30985895), (5, 12394358), (10, 6197179), (31, 1999090), (62, 999545), (155, 399818), (310, 199909)]