11990405

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 17335296

約数和(自身を除く): 5344891

約数列:

[1, 5, 7, 35, 37, 47, 185, 197, 235, 259, 329, 985, 1295, 1379, 1645, 1739, 6895, 7289, 8695, 9259, 12173, 36445, 46295, 51023, 60865, 64813, 255115, 324065, 342583, 1712915, 2398081, 11990405]

約数ペア:

[(1, 11990405), (5, 2398081), (7, 1712915), (35, 342583), (37, 324065), (47, 255115), (185, 64813), (197, 60865), (235, 51023), (259, 46295), (329, 36445), (985, 12173), (1295, 9259), (1379, 8695), (1645, 7289), (1739, 6895)]