123322640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{631}}^1$

素因数の和:1000

約数の個数: 80

約数和(自身を含む): 329145600

約数和(自身を除く): 205822960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 349, 560, 631, 698, 1262, 1396, 1745, 2443, 2524, 2792, 3155, 3490, 4417, 4886, 5048, 5584, 6310, 6980, 8834, 9772, 10096, 12215, 12620, 13960, 17668, 19544, 22085, 24430, 25240, 27920, 35336, 39088, 44170, 48860, 50480, 70672, 88340, 97720, 176680, 195440, 220219, 353360, 440438, 880876, 1101095, 1541533, 1761752, 2202190, 3083066, 3523504, 4404380, 6166132, 7707665, 8808760, 12332264, 15415330, 17617520, 24664528, 30830660, 61661320, 123322640]

約数ペア:

[(1, 123322640), (2, 61661320), (4, 30830660), (5, 24664528), (7, 17617520), (8, 15415330), (10, 12332264), (14, 8808760), (16, 7707665), (20, 6166132), (28, 4404380), (35, 3523504), (40, 3083066), (56, 2202190), (70, 1761752), (80, 1541533), (112, 1101095), (140, 880876), (280, 440438), (349, 353360), (560, 220219), (631, 195440), (698, 176680), (1262, 97720), (1396, 88340), (1745, 70672), (2443, 50480), (2524, 48860), (2792, 44170), (3155, 39088), (3490, 35336), (4417, 27920), (4886, 25240), (5048, 24430), (5584, 22085), (6310, 19544), (6980, 17668), (8834, 13960), (9772, 12620), (10096, 12215)]