127713920

素因数分解:

$2^7\times 5^1\times {\mathrm{431}}^1\times {\mathrm{463}}^1$

素因数の和:913

約数の個数: 64

約数和(自身を含む): 306685440

約数和(自身を除く): 178971520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 431, 463, 640, 862, 926, 1724, 1852, 2155, 2315, 3448, 3704, 4310, 4630, 6896, 7408, 8620, 9260, 13792, 14816, 17240, 18520, 27584, 29632, 34480, 37040, 55168, 59264, 68960, 74080, 137920, 148160, 199553, 275840, 296320, 399106, 798212, 997765, 1596424, 1995530, 3192848, 3991060, 6385696, 7982120, 12771392, 15964240, 25542784, 31928480, 63856960, 127713920]

約数ペア:

[(1, 127713920), (2, 63856960), (4, 31928480), (5, 25542784), (8, 15964240), (10, 12771392), (16, 7982120), (20, 6385696), (32, 3991060), (40, 3192848), (64, 1995530), (80, 1596424), (128, 997765), (160, 798212), (320, 399106), (431, 296320), (463, 275840), (640, 199553), (862, 148160), (926, 137920), (1724, 74080), (1852, 68960), (2155, 59264), (2315, 55168), (3448, 37040), (3704, 34480), (4310, 29632), (4630, 27584), (6896, 18520), (7408, 17240), (8620, 14816), (9260, 13792)]