128962880

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21211}}^1$

素因数の和:21247

約数の個数: 56

約数和(自身を含む): 323270880

約数和(自身を除く): 194308000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 21211, 42422, 84844, 106055, 169688, 212110, 339376, 403009, 424220, 678752, 806018, 848440, 1357504, 1612036, 1696880, 2015045, 3224072, 3393760, 4030090, 6448144, 6787520, 8060180, 12896288, 16120360, 25792576, 32240720, 64481440, 128962880]

約数ペア:

[(1, 128962880), (2, 64481440), (4, 32240720), (5, 25792576), (8, 16120360), (10, 12896288), (16, 8060180), (19, 6787520), (20, 6448144), (32, 4030090), (38, 3393760), (40, 3224072), (64, 2015045), (76, 1696880), (80, 1612036), (95, 1357504), (152, 848440), (160, 806018), (190, 678752), (304, 424220), (320, 403009), (380, 339376), (608, 212110), (760, 169688), (1216, 106055), (1520, 84844), (3040, 42422), (6080, 21211)]