20120899168

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{187751}}^1$

素因数の和:187975

約数の個数: 48

約数和(自身を含む): 42156332064

約数和(自身を除く): 22035432896

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 197, 272, 394, 544, 788, 1576, 3152, 3349, 6304, 6698, 13396, 26792, 53584, 107168, 187751, 375502, 751004, 1502008, 3004016, 3191767, 6008032, 6383534, 12767068, 25534136, 36986947, 51068272, 73973894, 102136544, 147947788, 295895576, 591791152, 628778099, 1183582304, 1257556198, 2515112396, 5030224792, 10060449584, 20120899168]

約数ペア:

[(1, 20120899168), (2, 10060449584), (4, 5030224792), (8, 2515112396), (16, 1257556198), (17, 1183582304), (32, 628778099), (34, 591791152), (68, 295895576), (136, 147947788), (197, 102136544), (272, 73973894), (394, 51068272), (544, 36986947), (788, 25534136), (1576, 12767068), (3152, 6383534), (3349, 6008032), (6304, 3191767), (6698, 3004016), (13396, 1502008), (26792, 751004), (53584, 375502), (107168, 187751)]