128213505

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2971}}^1$

素因数の和:3126

約数の個数: 48

約数和(自身を含む): 255924864

約数和(自身を除く): 127711359

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 137, 315, 411, 685, 959, 1233, 2055, 2877, 2971, 4795, 6165, 8631, 8913, 14385, 14855, 20797, 26739, 43155, 44565, 62391, 103985, 133695, 187173, 311955, 407027, 935865, 1221081, 2035135, 2849189, 3663243, 6105405, 8547567, 14245945, 18316215, 25642701, 42737835, 128213505]

約数ペア:

[(1, 128213505), (3, 42737835), (5, 25642701), (7, 18316215), (9, 14245945), (15, 8547567), (21, 6105405), (35, 3663243), (45, 2849189), (63, 2035135), (105, 1221081), (137, 935865), (315, 407027), (411, 311955), (685, 187173), (959, 133695), (1233, 103985), (2055, 62391), (2877, 44565), (2971, 43155), (4795, 26739), (6165, 20797), (8631, 14855), (8913, 14385)]