123455440

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{10357}}^1$

素因数の和:10519

約数の個数: 40

約数和(自身を含む): 288988200

約数和(自身を除く): 165532760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 10357, 11920, 20714, 41428, 51785, 82856, 103570, 165712, 207140, 414280, 828560, 1543193, 3086386, 6172772, 7715965, 12345544, 15431930, 24691088, 30863860, 61727720, 123455440]

約数ペア:

[(1, 123455440), (2, 61727720), (4, 30863860), (5, 24691088), (8, 15431930), (10, 12345544), (16, 7715965), (20, 6172772), (40, 3086386), (80, 1543193), (149, 828560), (298, 414280), (596, 207140), (745, 165712), (1192, 103570), (1490, 82856), (2384, 51785), (2980, 41428), (5960, 20714), (10357, 11920)]