123220720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1583}}^1$

素因数の和:1742

約数の個数: 80

約数和(自身を含む): 329978880

約数和(自身を除く): 206758160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 695, 973, 1112, 1390, 1583, 1946, 2224, 2780, 3166, 3892, 4865, 5560, 6332, 7784, 7915, 9730, 11081, 11120, 12664, 15568, 15830, 19460, 22162, 25328, 31660, 38920, 44324, 55405, 63320, 77840, 88648, 110810, 126640, 177296, 220037, 221620, 440074, 443240, 880148, 886480, 1100185, 1540259, 1760296, 2200370, 3080518, 3520592, 4400740, 6161036, 7701295, 8801480, 12322072, 15402590, 17602960, 24644144, 30805180, 61610360, 123220720]

約数ペア:

[(1, 123220720), (2, 61610360), (4, 30805180), (5, 24644144), (7, 17602960), (8, 15402590), (10, 12322072), (14, 8801480), (16, 7701295), (20, 6161036), (28, 4400740), (35, 3520592), (40, 3080518), (56, 2200370), (70, 1760296), (80, 1540259), (112, 1100185), (139, 886480), (140, 880148), (278, 443240), (280, 440074), (556, 221620), (560, 220037), (695, 177296), (973, 126640), (1112, 110810), (1390, 88648), (1583, 77840), (1946, 63320), (2224, 55405), (2780, 44324), (3166, 38920), (3892, 31660), (4865, 25328), (5560, 22162), (6332, 19460), (7784, 15830), (7915, 15568), (9730, 12664), (11081, 11120)]