129311240

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{6427}}^1$

素因数の和:6941

約数の個数: 32

約数和(自身を含む): 291574080

約数和(自身を除く): 162262840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 1006, 2012, 2515, 4024, 5030, 6427, 10060, 12854, 20120, 25708, 32135, 51416, 64270, 128540, 257080, 3232781, 6465562, 12931124, 16163905, 25862248, 32327810, 64655620, 129311240]

約数ペア:

[(1, 129311240), (2, 64655620), (4, 32327810), (5, 25862248), (8, 16163905), (10, 12931124), (20, 6465562), (40, 3232781), (503, 257080), (1006, 128540), (2012, 64270), (2515, 51416), (4024, 32135), (5030, 25708), (6427, 20120), (10060, 12854)]