20683360

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{503}}^1$

素因数の和:775

約数の個数: 48

約数和(自身を含む): 49152096

約数和(自身を除く): 28468736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 503, 514, 1006, 1028, 1285, 2012, 2056, 2515, 2570, 4024, 4112, 5030, 5140, 8048, 8224, 10060, 10280, 16096, 20120, 20560, 40240, 41120, 80480, 129271, 258542, 517084, 646355, 1034168, 1292710, 2068336, 2585420, 4136672, 5170840, 10341680, 20683360]

約数ペア:

[(1, 20683360), (2, 10341680), (4, 5170840), (5, 4136672), (8, 2585420), (10, 2068336), (16, 1292710), (20, 1034168), (32, 646355), (40, 517084), (80, 258542), (160, 129271), (257, 80480), (503, 41120), (514, 40240), (1006, 20560), (1028, 20120), (1285, 16096), (2012, 10280), (2056, 10060), (2515, 8224), (2570, 8048), (4024, 5140), (4112, 5030)]