128678984

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{7951}}^1$

素因数の和:7998

約数の個数: 48

約数和(自身を含む): 292951680

約数和(自身を除く): 164272696

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 289, 476, 578, 952, 1156, 2023, 2312, 4046, 7951, 8092, 15902, 16184, 31804, 55657, 63608, 111314, 135167, 222628, 270334, 445256, 540668, 946169, 1081336, 1892338, 2297839, 3784676, 4595678, 7569352, 9191356, 16084873, 18382712, 32169746, 64339492, 128678984]

約数ペア:

[(1, 128678984), (2, 64339492), (4, 32169746), (7, 18382712), (8, 16084873), (14, 9191356), (17, 7569352), (28, 4595678), (34, 3784676), (56, 2297839), (68, 1892338), (119, 1081336), (136, 946169), (238, 540668), (289, 445256), (476, 270334), (578, 222628), (952, 135167), (1156, 111314), (2023, 63608), (2312, 55657), (4046, 31804), (7951, 16184), (8092, 15902)]