178400728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{106699}}^1$

素因数の和:106735

約数の個数: 32

約数和(自身を含む): 384120000

約数和(自身を除く): 205719272

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 106699, 213398, 426796, 853592, 1173689, 2027281, 2347378, 4054562, 4694756, 8109124, 9389512, 16218248, 22300091, 44600182, 89200364, 178400728]

約数ペア:

[(1, 178400728), (2, 89200364), (4, 44600182), (8, 22300091), (11, 16218248), (19, 9389512), (22, 8109124), (38, 4694756), (44, 4054562), (76, 2347378), (88, 2027281), (152, 1173689), (209, 853592), (418, 426796), (836, 213398), (1672, 106699)]