388289395

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1\times {\mathrm{419}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 514382400

約数和(自身を除く): 126093005

約数列:

[1, 5, 13, 53, 65, 265, 269, 419, 689, 1345, 2095, 3445, 3497, 5447, 14257, 17485, 22207, 27235, 71285, 111035, 112711, 185341, 288691, 563555, 926705, 1443455, 1465243, 5973683, 7326215, 29868415, 77657879, 388289395]

約数ペア:

[(1, 388289395), (5, 77657879), (13, 29868415), (53, 7326215), (65, 5973683), (265, 1465243), (269, 1443455), (419, 926705), (689, 563555), (1345, 288691), (2095, 185341), (3445, 112711), (3497, 111035), (5447, 71285), (14257, 27235), (17485, 22207)]