521005420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{9497}}^1$

素因数の和:9730

約数の個数: 48

約数和(自身を含む): 1183982688

約数和(自身を除く): 662977268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 211, 260, 422, 844, 1055, 2110, 2743, 4220, 5486, 9497, 10972, 13715, 18994, 27430, 37988, 47485, 54860, 94970, 123461, 189940, 246922, 493844, 617305, 1234610, 2003867, 2469220, 4007734, 8015468, 10019335, 20038670, 26050271, 40077340, 52100542, 104201084, 130251355, 260502710, 521005420]

約数ペア:

[(1, 521005420), (2, 260502710), (4, 130251355), (5, 104201084), (10, 52100542), (13, 40077340), (20, 26050271), (26, 20038670), (52, 10019335), (65, 8015468), (130, 4007734), (211, 2469220), (260, 2003867), (422, 1234610), (844, 617305), (1055, 493844), (2110, 246922), (2743, 189940), (4220, 123461), (5486, 94970), (9497, 54860), (10972, 47485), (13715, 37988), (18994, 27430)]