20161578555

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1\times {\mathrm{25583}}^1$

素因数の和:25888

約数の個数: 48

約数和(自身を含む): 35536790016

約数和(自身を除く): 15375211461

約数列:

[1, 3, 5, 9, 15, 45, 83, 211, 249, 415, 633, 747, 1055, 1245, 1899, 3165, 3735, 9495, 17513, 25583, 52539, 76749, 87565, 127915, 157617, 230247, 262695, 383745, 788085, 1151235, 2123389, 5398013, 6370167, 10616945, 16194039, 19110501, 26990065, 31850835, 48582117, 80970195, 95552505, 242910585, 448035079, 1344105237, 2240175395, 4032315711, 6720526185, 20161578555]

約数ペア:

[(1, 20161578555), (3, 6720526185), (5, 4032315711), (9, 2240175395), (15, 1344105237), (45, 448035079), (83, 242910585), (211, 95552505), (249, 80970195), (415, 48582117), (633, 31850835), (747, 26990065), (1055, 19110501), (1245, 16194039), (1899, 10616945), (3165, 6370167), (3735, 5398013), (9495, 2123389), (17513, 1151235), (25583, 788085), (52539, 383745), (76749, 262695), (87565, 230247), (127915, 157617)]