20647510192

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{6389}}^1$

素因数の和:6590

約数の個数: 80

約数和(自身を含む): 42273990720

約数和(自身を除く): 21626480528

約数列:

[1, 2, 4, 8, 16, 37, 53, 74, 103, 106, 148, 206, 212, 296, 412, 424, 592, 824, 848, 1648, 1961, 3811, 3922, 5459, 6389, 7622, 7844, 10918, 12778, 15244, 15688, 21836, 25556, 30488, 31376, 43672, 51112, 60976, 87344, 102224, 201983, 236393, 338617, 403966, 472786, 658067, 677234, 807932, 945572, 1316134, 1354468, 1615864, 1891144, 2632268, 2708936, 3231728, 3782288, 5264536, 5417872, 10529072, 12528829, 24348479, 25057658, 34877551, 48696958, 50115316, 69755102, 97393916, 100230632, 139510204, 194787832, 200461264, 279020408, 389575664, 558040816, 1290469387, 2580938774, 5161877548, 10323755096, 20647510192]

約数ペア:

[(1, 20647510192), (2, 10323755096), (4, 5161877548), (8, 2580938774), (16, 1290469387), (37, 558040816), (53, 389575664), (74, 279020408), (103, 200461264), (106, 194787832), (148, 139510204), (206, 100230632), (212, 97393916), (296, 69755102), (412, 50115316), (424, 48696958), (592, 34877551), (824, 25057658), (848, 24348479), (1648, 12528829), (1961, 10529072), (3811, 5417872), (3922, 5264536), (5459, 3782288), (6389, 3231728), (7622, 2708936), (7844, 2632268), (10918, 1891144), (12778, 1615864), (15244, 1354468), (15688, 1316134), (21836, 945572), (25556, 807932), (30488, 677234), (31376, 658067), (43672, 472786), (51112, 403966), (60976, 338617), (87344, 236393), (102224, 201983)]