16507840

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:749

約数の個数: 56

約数和(自身を含む): 39867840

約数和(自身を除く): 23360000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 653, 790, 1264, 1306, 1580, 2528, 2612, 3160, 3265, 5056, 5224, 6320, 6530, 10448, 12640, 13060, 20896, 25280, 26120, 41792, 51587, 52240, 103174, 104480, 206348, 208960, 257935, 412696, 515870, 825392, 1031740, 1650784, 2063480, 3301568, 4126960, 8253920, 16507840]

約数ペア:

[(1, 16507840), (2, 8253920), (4, 4126960), (5, 3301568), (8, 2063480), (10, 1650784), (16, 1031740), (20, 825392), (32, 515870), (40, 412696), (64, 257935), (79, 208960), (80, 206348), (158, 104480), (160, 103174), (316, 52240), (320, 51587), (395, 41792), (632, 26120), (653, 25280), (790, 20896), (1264, 13060), (1306, 12640), (1580, 10448), (2528, 6530), (2612, 6320), (3160, 5224), (3265, 5056)]