20120837740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1291453}}^1$

素因数の和:1291522

約数の個数: 48

約数和(自身を含む): 45562497120

約数和(自身を除く): 25441659380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 1291453, 2582906, 5165812, 6457265, 12914530, 24537607, 25829060, 49075214, 52949573, 98150428, 105899146, 122688035, 211798292, 245376070, 264747865, 490752140, 529495730, 1006041887, 1058991460, 2012083774, 4024167548, 5030209435, 10060418870, 20120837740]

約数ペア:

[(1, 20120837740), (2, 10060418870), (4, 5030209435), (5, 4024167548), (10, 2012083774), (19, 1058991460), (20, 1006041887), (38, 529495730), (41, 490752140), (76, 264747865), (82, 245376070), (95, 211798292), (164, 122688035), (190, 105899146), (205, 98150428), (380, 52949573), (410, 49075214), (779, 25829060), (820, 24537607), (1558, 12914530), (3116, 6457265), (3895, 5165812), (7790, 2582906), (15580, 1291453)]