1999018190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{19391}}^1$

素因数の和:19485

約数の個数: 48

約数和(自身を含む): 3960389376

約数和(自身を除く): 1961371186

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 169, 305, 338, 610, 793, 845, 1586, 1690, 3965, 7930, 10309, 19391, 20618, 38782, 51545, 96955, 103090, 193910, 252083, 504166, 1182851, 1260415, 2365702, 2520830, 3277079, 5914255, 6554158, 11828510, 15377063, 16385395, 30754126, 32770790, 76885315, 153770630, 199901819, 399803638, 999509095, 1999018190]

約数ペア:

[(1, 1999018190), (2, 999509095), (5, 399803638), (10, 199901819), (13, 153770630), (26, 76885315), (61, 32770790), (65, 30754126), (122, 16385395), (130, 15377063), (169, 11828510), (305, 6554158), (338, 5914255), (610, 3277079), (793, 2520830), (845, 2365702), (1586, 1260415), (1690, 1182851), (3965, 504166), (7930, 252083), (10309, 193910), (19391, 103090), (20618, 96955), (38782, 51545)]