21299946880

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{899491}}^1$

素因数の和:899547

約数の個数: 64

約数和(自身を含む): 52296464880

約数和(自身を除く): 30996518000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 320, 370, 592, 640, 740, 1184, 1480, 2368, 2960, 4736, 5920, 11840, 23680, 899491, 1798982, 3597964, 4497455, 7195928, 8994910, 14391856, 17989820, 28783712, 33281167, 35979640, 57567424, 66562334, 71959280, 115134848, 133124668, 143918560, 166405835, 266249336, 287837120, 332811670, 532498672, 575674240, 665623340, 1064997344, 1331246680, 2129994688, 2662493360, 4259989376, 5324986720, 10649973440, 21299946880]

約数ペア:

[(1, 21299946880), (2, 10649973440), (4, 5324986720), (5, 4259989376), (8, 2662493360), (10, 2129994688), (16, 1331246680), (20, 1064997344), (32, 665623340), (37, 575674240), (40, 532498672), (64, 332811670), (74, 287837120), (80, 266249336), (128, 166405835), (148, 143918560), (160, 133124668), (185, 115134848), (296, 71959280), (320, 66562334), (370, 57567424), (592, 35979640), (640, 33281167), (740, 28783712), (1184, 17989820), (1480, 14391856), (2368, 8994910), (2960, 7195928), (4736, 4497455), (5920, 3597964), (11840, 1798982), (23680, 899491)]