18097616

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:347

約数の個数: 40

約数和(自身を含む): 36158400

約数和(自身を除く): 18060784

約数列:

[1, 2, 4, 8, 16, 71, 89, 142, 178, 179, 284, 356, 358, 568, 712, 716, 1136, 1424, 1432, 2864, 6319, 12638, 12709, 15931, 25276, 25418, 31862, 50552, 50836, 63724, 101104, 101672, 127448, 203344, 254896, 1131101, 2262202, 4524404, 9048808, 18097616]

約数ペア:

[(1, 18097616), (2, 9048808), (4, 4524404), (8, 2262202), (16, 1131101), (71, 254896), (89, 203344), (142, 127448), (178, 101672), (179, 101104), (284, 63724), (356, 50836), (358, 50552), (568, 31862), (712, 25418), (716, 25276), (1136, 15931), (1424, 12709), (1432, 12638), (2864, 6319)]