128129895

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2879}}^1$

素因数の和:2956

約数の個数: 48

約数和(自身を含む): 237219840

約数和(自身を除く): 109089945

約数列:

[1, 3, 5, 9, 15, 23, 43, 45, 69, 115, 129, 207, 215, 345, 387, 645, 989, 1035, 1935, 2879, 2967, 4945, 8637, 8901, 14395, 14835, 25911, 43185, 44505, 66217, 123797, 129555, 198651, 331085, 371391, 595953, 618985, 993255, 1114173, 1856955, 2847331, 2979765, 5570865, 8541993, 14236655, 25625979, 42709965, 128129895]

約数ペア:

[(1, 128129895), (3, 42709965), (5, 25625979), (9, 14236655), (15, 8541993), (23, 5570865), (43, 2979765), (45, 2847331), (69, 1856955), (115, 1114173), (129, 993255), (207, 618985), (215, 595953), (345, 371391), (387, 331085), (645, 198651), (989, 129555), (1035, 123797), (1935, 66217), (2879, 44505), (2967, 43185), (4945, 25911), (8637, 14835), (8901, 14395)]