199905890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{17551}}^1$

素因数の和:17642

約数の個数: 32

約数和(自身を含む): 386705664

約数和(自身を除く): 186799774

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 134, 170, 335, 670, 1139, 2278, 5695, 11390, 17551, 35102, 87755, 175510, 298367, 596734, 1175917, 1491835, 2351834, 2983670, 5879585, 11759170, 19990589, 39981178, 99952945, 199905890]

約数ペア:

[(1, 199905890), (2, 99952945), (5, 39981178), (10, 19990589), (17, 11759170), (34, 5879585), (67, 2983670), (85, 2351834), (134, 1491835), (170, 1175917), (335, 596734), (670, 298367), (1139, 175510), (2278, 87755), (5695, 35102), (11390, 17551)]