18050540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 39325440

約数和(自身を除く): 21274900

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 139, 151, 172, 215, 278, 302, 430, 556, 604, 695, 755, 860, 1390, 1510, 2780, 3020, 5977, 6493, 11954, 12986, 20989, 23908, 25972, 29885, 32465, 41978, 59770, 64930, 83956, 104945, 119540, 129860, 209890, 419780, 902527, 1805054, 3610108, 4512635, 9025270, 18050540]

約数ペア:

[(1, 18050540), (2, 9025270), (4, 4512635), (5, 3610108), (10, 1805054), (20, 902527), (43, 419780), (86, 209890), (139, 129860), (151, 119540), (172, 104945), (215, 83956), (278, 64930), (302, 59770), (430, 41978), (556, 32465), (604, 29885), (695, 25972), (755, 23908), (860, 20989), (1390, 12986), (1510, 11954), (2780, 6493), (3020, 5977)]