80821120

素因数分解:

$2^7\times 5^1\times {\mathrm{293}}^1\times {\mathrm{431}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 194322240

約数和(自身を除く): 113501120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 293, 320, 431, 586, 640, 862, 1172, 1465, 1724, 2155, 2344, 2930, 3448, 4310, 4688, 5860, 6896, 8620, 9376, 11720, 13792, 17240, 18752, 23440, 27584, 34480, 37504, 46880, 55168, 68960, 93760, 126283, 137920, 187520, 252566, 275840, 505132, 631415, 1010264, 1262830, 2020528, 2525660, 4041056, 5051320, 8082112, 10102640, 16164224, 20205280, 40410560, 80821120]

約数ペア:

[(1, 80821120), (2, 40410560), (4, 20205280), (5, 16164224), (8, 10102640), (10, 8082112), (16, 5051320), (20, 4041056), (32, 2525660), (40, 2020528), (64, 1262830), (80, 1010264), (128, 631415), (160, 505132), (293, 275840), (320, 252566), (431, 187520), (586, 137920), (640, 126283), (862, 93760), (1172, 68960), (1465, 55168), (1724, 46880), (2155, 37504), (2344, 34480), (2930, 27584), (3448, 23440), (4310, 18752), (4688, 17240), (5860, 13792), (6896, 11720), (8620, 9376)]