18965904

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 51455040

約数和(自身を除く): 32489136

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 59, 74, 111, 118, 148, 177, 181, 222, 236, 296, 354, 362, 444, 472, 543, 592, 708, 724, 888, 944, 1086, 1416, 1448, 1776, 2172, 2183, 2832, 2896, 4344, 4366, 6549, 6697, 8688, 8732, 10679, 13098, 13394, 17464, 20091, 21358, 26196, 26788, 32037, 34928, 40182, 42716, 52392, 53576, 64074, 80364, 85432, 104784, 107152, 128148, 160728, 170864, 256296, 321456, 395123, 512592, 790246, 1185369, 1580492, 2370738, 3160984, 4741476, 6321968, 9482952, 18965904]

約数ペア:

[(1, 18965904), (2, 9482952), (3, 6321968), (4, 4741476), (6, 3160984), (8, 2370738), (12, 1580492), (16, 1185369), (24, 790246), (37, 512592), (48, 395123), (59, 321456), (74, 256296), (111, 170864), (118, 160728), (148, 128148), (177, 107152), (181, 104784), (222, 85432), (236, 80364), (296, 64074), (354, 53576), (362, 52392), (444, 42716), (472, 40182), (543, 34928), (592, 32037), (708, 26788), (724, 26196), (888, 21358), (944, 20091), (1086, 17464), (1416, 13394), (1448, 13098), (1776, 10679), (2172, 8732), (2183, 8688), (2832, 6697), (2896, 6549), (4344, 4366)]