20725276

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1907}}^1$

素因数の和:1954

約数の個数: 48

約数和(自身を含む): 44876160

約数和(自身を除く): 24150884

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 143, 209, 247, 286, 418, 494, 572, 836, 988, 1907, 2717, 3814, 5434, 7628, 10868, 20977, 24791, 36233, 41954, 49582, 72466, 83908, 99164, 144932, 272701, 398563, 471029, 545402, 797126, 942058, 1090804, 1594252, 1884116, 5181319, 10362638, 20725276]

約数ペア:

[(1, 20725276), (2, 10362638), (4, 5181319), (11, 1884116), (13, 1594252), (19, 1090804), (22, 942058), (26, 797126), (38, 545402), (44, 471029), (52, 398563), (76, 272701), (143, 144932), (209, 99164), (247, 83908), (286, 72466), (418, 49582), (494, 41954), (572, 36233), (836, 24791), (988, 20977), (1907, 10868), (2717, 7628), (3814, 5434)]