20086690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 42184800

約数和(自身を除く): 22098110

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 61, 65, 85, 122, 130, 149, 170, 221, 298, 305, 442, 610, 745, 793, 1037, 1105, 1490, 1586, 1937, 2074, 2210, 2533, 3874, 3965, 5066, 5185, 7930, 9089, 9685, 10370, 12665, 13481, 18178, 19370, 25330, 26962, 32929, 45445, 65858, 67405, 90890, 118157, 134810, 154513, 164645, 236314, 309026, 329290, 590785, 772565, 1181570, 1545130, 2008669, 4017338, 10043345, 20086690]

約数ペア:

[(1, 20086690), (2, 10043345), (5, 4017338), (10, 2008669), (13, 1545130), (17, 1181570), (26, 772565), (34, 590785), (61, 329290), (65, 309026), (85, 236314), (122, 164645), (130, 154513), (149, 134810), (170, 118157), (221, 90890), (298, 67405), (305, 65858), (442, 45445), (610, 32929), (745, 26962), (793, 25330), (1037, 19370), (1105, 18178), (1490, 13481), (1586, 12665), (1937, 10370), (2074, 9685), (2210, 9089), (2533, 7930), (3874, 5185), (3965, 5066)]