19486220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{503}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 24966580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 503, 596, 745, 1006, 1490, 1937, 2012, 2515, 2980, 3874, 5030, 6539, 7748, 9685, 10060, 13078, 19370, 26156, 32695, 38740, 65390, 74947, 130780, 149894, 299788, 374735, 749470, 974311, 1498940, 1948622, 3897244, 4871555, 9743110, 19486220]

約数ペア:

[(1, 19486220), (2, 9743110), (4, 4871555), (5, 3897244), (10, 1948622), (13, 1498940), (20, 974311), (26, 749470), (52, 374735), (65, 299788), (130, 149894), (149, 130780), (260, 74947), (298, 65390), (503, 38740), (596, 32695), (745, 26156), (1006, 19370), (1490, 13078), (1937, 10060), (2012, 9685), (2515, 7748), (2980, 6539), (3874, 5030)]