19263640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43781}}^1$

素因数の和:43803

約数の個数: 32

約数和(自身を含む): 47284560

約数和(自身を除く): 28020920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 43781, 87562, 175124, 218905, 350248, 437810, 481591, 875620, 963182, 1751240, 1926364, 2407955, 3852728, 4815910, 9631820, 19263640]

約数ペア:

[(1, 19263640), (2, 9631820), (4, 4815910), (5, 3852728), (8, 2407955), (10, 1926364), (11, 1751240), (20, 963182), (22, 875620), (40, 481591), (44, 437810), (55, 350248), (88, 218905), (110, 175124), (220, 87562), (440, 43781)]