1640394864

素因数分解:

$2^4\times 3^2\times {\mathrm{11391631}}^1$

素因数の和:11391645

約数の個数: 30

約数和(自身を含む): 4590827696

約数和(自身を除く): 2950432832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 11391631, 22783262, 34174893, 45566524, 68349786, 91133048, 102524679, 136699572, 182266096, 205049358, 273399144, 410098716, 546798288, 820197432, 1640394864]

約数ペア:

[(1, 1640394864), (2, 820197432), (3, 546798288), (4, 410098716), (6, 273399144), (8, 205049358), (9, 182266096), (12, 136699572), (16, 102524679), (18, 91133048), (24, 68349786), (36, 45566524), (48, 34174893), (72, 22783262), (144, 11391631)]