18808270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{971}}^1$

素因数の和:1140

約数の個数: 32

約数和(自身を含む): 36741600

約数和(自身を除く): 17933330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 971, 1490, 1937, 1942, 3874, 4855, 9685, 9710, 12623, 19370, 25246, 63115, 126230, 144679, 289358, 723395, 1446790, 1880827, 3761654, 9404135, 18808270]

約数ペア:

[(1, 18808270), (2, 9404135), (5, 3761654), (10, 1880827), (13, 1446790), (26, 723395), (65, 289358), (130, 144679), (149, 126230), (298, 63115), (745, 25246), (971, 19370), (1490, 12623), (1937, 9710), (1942, 9685), (3874, 4855)]