20158619905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1\times {\mathrm{641}}^1$

素因数の和:1114

約数の個数: 64

約数和(自身を含む): 27401587200

約数和(自身を除く): 7242967295

約数列:

[1, 5, 19, 23, 37, 95, 115, 185, 389, 437, 641, 703, 851, 1945, 2185, 3205, 3515, 4255, 7391, 8947, 12179, 14393, 14743, 16169, 23717, 36955, 44735, 60895, 71965, 73715, 80845, 118585, 169993, 249349, 273467, 280117, 331039, 450623, 545491, 849965, 1246745, 1367335, 1400585, 1655195, 2253115, 2727455, 4737631, 5735027, 6289741, 9225913, 10364329, 23688155, 28675135, 31448705, 46129565, 51821645, 108965513, 175292347, 212195999, 544827565, 876461735, 1060979995, 4031723981, 20158619905]

約数ペア:

[(1, 20158619905), (5, 4031723981), (19, 1060979995), (23, 876461735), (37, 544827565), (95, 212195999), (115, 175292347), (185, 108965513), (389, 51821645), (437, 46129565), (641, 31448705), (703, 28675135), (851, 23688155), (1945, 10364329), (2185, 9225913), (3205, 6289741), (3515, 5735027), (4255, 4737631), (7391, 2727455), (8947, 2253115), (12179, 1655195), (14393, 1400585), (14743, 1367335), (16169, 1246745), (23717, 849965), (36955, 545491), (44735, 450623), (60895, 331039), (71965, 280117), (73715, 273467), (80845, 249349), (118585, 169993)]