20641877476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{269}}^1\times {\mathrm{4831}}^1$

素因数の和:5153

約数の個数: 72

約数和(自身を含む): 41753698560

約数和(自身を除く): 21111821084

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 269, 361, 418, 538, 722, 836, 1076, 1444, 2959, 3971, 4831, 5111, 5918, 7942, 9662, 10222, 11836, 15884, 19324, 20444, 53141, 56221, 91789, 97109, 106282, 112442, 183578, 194218, 212564, 224884, 367156, 388436, 1009679, 1068199, 1299539, 1743991, 2019358, 2136398, 2599078, 3487982, 4038716, 4272796, 5198156, 6975964, 14294929, 19183901, 24691241, 28589858, 38367802, 49382482, 57179716, 76735604, 98764964, 271603651, 469133579, 543207302, 938267158, 1086414604, 1876534316, 5160469369, 10320938738, 20641877476]

約数ペア:

[(1, 20641877476), (2, 10320938738), (4, 5160469369), (11, 1876534316), (19, 1086414604), (22, 938267158), (38, 543207302), (44, 469133579), (76, 271603651), (209, 98764964), (269, 76735604), (361, 57179716), (418, 49382482), (538, 38367802), (722, 28589858), (836, 24691241), (1076, 19183901), (1444, 14294929), (2959, 6975964), (3971, 5198156), (4831, 4272796), (5111, 4038716), (5918, 3487982), (7942, 2599078), (9662, 2136398), (10222, 2019358), (11836, 1743991), (15884, 1299539), (19324, 1068199), (20444, 1009679), (53141, 388436), (56221, 367156), (91789, 224884), (97109, 212564), (106282, 194218), (112442, 183578)]