331435640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{937}}^1$

素因数の和:1224

約数の個数: 64

約数和(自身を含む): 769910400

約数和(自身を除く): 438474760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 239, 296, 370, 478, 740, 937, 956, 1195, 1480, 1874, 1912, 2390, 3748, 4685, 4780, 7496, 8843, 9370, 9560, 17686, 18740, 34669, 35372, 37480, 44215, 69338, 70744, 88430, 138676, 173345, 176860, 223943, 277352, 346690, 353720, 447886, 693380, 895772, 1119715, 1386760, 1791544, 2239430, 4478860, 8285891, 8957720, 16571782, 33143564, 41429455, 66287128, 82858910, 165717820, 331435640]

約数ペア:

[(1, 331435640), (2, 165717820), (4, 82858910), (5, 66287128), (8, 41429455), (10, 33143564), (20, 16571782), (37, 8957720), (40, 8285891), (74, 4478860), (148, 2239430), (185, 1791544), (239, 1386760), (296, 1119715), (370, 895772), (478, 693380), (740, 447886), (937, 353720), (956, 346690), (1195, 277352), (1480, 223943), (1874, 176860), (1912, 173345), (2390, 138676), (3748, 88430), (4685, 70744), (4780, 69338), (7496, 44215), (8843, 37480), (9370, 35372), (9560, 34669), (17686, 18740)]