8253920

素因数分解:

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

素因数の和:747

約数の個数: 48

約数和(自身を含む): 19776960

約数和(自身を除く): 11523040

約数列:

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

約数ペア:

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