18036640

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:965

約数の個数: 48

約数和(自身を含む): 42971040

約数和(自身を除く): 24934400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 811, 1112, 1390, 1622, 2224, 2780, 3244, 4055, 4448, 5560, 6488, 8110, 11120, 12976, 16220, 22240, 25952, 32440, 64880, 112729, 129760, 225458, 450916, 563645, 901832, 1127290, 1803664, 2254580, 3607328, 4509160, 9018320, 18036640]

約数ペア:

[(1, 18036640), (2, 9018320), (4, 4509160), (5, 3607328), (8, 2254580), (10, 1803664), (16, 1127290), (20, 901832), (32, 563645), (40, 450916), (80, 225458), (139, 129760), (160, 112729), (278, 64880), (556, 32440), (695, 25952), (811, 22240), (1112, 16220), (1390, 12976), (1622, 11120), (2224, 8110), (2780, 6488), (3244, 5560), (4055, 4448)]