20565543140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{179989}}^1$

素因数の和:180224

約数の個数: 48

約数和(自身を含む): 44903905200

約数和(自身を除く): 24338362060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 197, 290, 394, 580, 788, 985, 1970, 3940, 5713, 11426, 22852, 28565, 57130, 114260, 179989, 359978, 719956, 899945, 1799890, 3599780, 5219681, 10439362, 20878724, 26098405, 35457833, 52196810, 70915666, 104393620, 141831332, 177289165, 354578330, 709156660, 1028277157, 2056554314, 4113108628, 5141385785, 10282771570, 20565543140]

約数ペア:

[(1, 20565543140), (2, 10282771570), (4, 5141385785), (5, 4113108628), (10, 2056554314), (20, 1028277157), (29, 709156660), (58, 354578330), (116, 177289165), (145, 141831332), (197, 104393620), (290, 70915666), (394, 52196810), (580, 35457833), (788, 26098405), (985, 20878724), (1970, 10439362), (3940, 5219681), (5713, 3599780), (11426, 1799890), (22852, 899945), (28565, 719956), (57130, 359978), (114260, 179989)]