20197473980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{419557}}^1$

素因数の和:419678

約数の個数: 48

約数和(自身を含む): 44406018720

約数和(自身を除く): 24208544740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 83, 116, 145, 166, 290, 332, 415, 580, 830, 1660, 2407, 4814, 9628, 12035, 24070, 48140, 419557, 839114, 1678228, 2097785, 4195570, 8391140, 12167153, 24334306, 34823231, 48668612, 60835765, 69646462, 121671530, 139292924, 174116155, 243343060, 348232310, 696464620, 1009873699, 2019747398, 4039494796, 5049368495, 10098736990, 20197473980]

約数ペア:

[(1, 20197473980), (2, 10098736990), (4, 5049368495), (5, 4039494796), (10, 2019747398), (20, 1009873699), (29, 696464620), (58, 348232310), (83, 243343060), (116, 174116155), (145, 139292924), (166, 121671530), (290, 69646462), (332, 60835765), (415, 48668612), (580, 34823231), (830, 24334306), (1660, 12167153), (2407, 8391140), (4814, 4195570), (9628, 2097785), (12035, 1678228), (24070, 839114), (48140, 419557)]