205855880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{617}}^1$

素因数の和:1086

約数の個数: 64

約数和(自身を含む): 489456000

約数和(自身を除く): 283600120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 439, 617, 760, 878, 1234, 1756, 2195, 2468, 3085, 3512, 4390, 4936, 6170, 8341, 8780, 11723, 12340, 16682, 17560, 23446, 24680, 33364, 41705, 46892, 58615, 66728, 83410, 93784, 117230, 166820, 234460, 270863, 333640, 468920, 541726, 1083452, 1354315, 2166904, 2708630, 5146397, 5417260, 10292794, 10834520, 20585588, 25731985, 41171176, 51463970, 102927940, 205855880]

約数ペア:

[(1, 205855880), (2, 102927940), (4, 51463970), (5, 41171176), (8, 25731985), (10, 20585588), (19, 10834520), (20, 10292794), (38, 5417260), (40, 5146397), (76, 2708630), (95, 2166904), (152, 1354315), (190, 1083452), (380, 541726), (439, 468920), (617, 333640), (760, 270863), (878, 234460), (1234, 166820), (1756, 117230), (2195, 93784), (2468, 83410), (3085, 66728), (3512, 58615), (4390, 46892), (4936, 41705), (6170, 33364), (8341, 24680), (8780, 23446), (11723, 17560), (12340, 16682)]