290463992

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{398989}}^1$

素因数の和:399015

約数の個数: 32

約数和(自身を含む): 670303200

約数和(自身を除く): 379839208

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 398989, 797978, 1595956, 2792923, 3191912, 5186857, 5585846, 10373714, 11171692, 20747428, 22343384, 36307999, 41494856, 72615998, 145231996, 290463992]

約数ペア:

[(1, 290463992), (2, 145231996), (4, 72615998), (7, 41494856), (8, 36307999), (13, 22343384), (14, 20747428), (26, 11171692), (28, 10373714), (52, 5585846), (56, 5186857), (91, 3191912), (104, 2792923), (182, 1595956), (364, 797978), (728, 398989)]