164420816

素因数分解:

$2^4\times 7^1\times {\mathrm{647}}^1\times {\mathrm{2269}}^1$

素因数の和:2931

約数の個数: 40

約数和(自身を含む): 364798080

約数和(自身を除く): 200377264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 647, 1294, 2269, 2588, 4529, 4538, 5176, 9058, 9076, 10352, 15883, 18116, 18152, 31766, 36232, 36304, 63532, 72464, 127064, 254128, 1468043, 2936086, 5872172, 10276301, 11744344, 20552602, 23488688, 41105204, 82210408, 164420816]

約数ペア:

[(1, 164420816), (2, 82210408), (4, 41105204), (7, 23488688), (8, 20552602), (14, 11744344), (16, 10276301), (28, 5872172), (56, 2936086), (112, 1468043), (647, 254128), (1294, 127064), (2269, 72464), (2588, 63532), (4529, 36304), (4538, 36232), (5176, 31766), (9058, 18152), (9076, 18116), (10352, 15883)]