21256320

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11071}}^1$

素因数の和:11093

約数の個数: 64

約数和(自身を含む): 67760640

約数和(自身を除く): 46504320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 11071, 22142, 33213, 44284, 55355, 66426, 88568, 110710, 132852, 166065, 177136, 221420, 265704, 332130, 354272, 442840, 531408, 664260, 708544, 885680, 1062816, 1328520, 1417088, 1771360, 2125632, 2657040, 3542720, 4251264, 5314080, 7085440, 10628160, 21256320]

約数ペア:

[(1, 21256320), (2, 10628160), (3, 7085440), (4, 5314080), (5, 4251264), (6, 3542720), (8, 2657040), (10, 2125632), (12, 1771360), (15, 1417088), (16, 1328520), (20, 1062816), (24, 885680), (30, 708544), (32, 664260), (40, 531408), (48, 442840), (60, 354272), (64, 332130), (80, 265704), (96, 221420), (120, 177136), (128, 166065), (160, 132852), (192, 110710), (240, 88568), (320, 66426), (384, 55355), (480, 44284), (640, 33213), (960, 22142), (1920, 11071)]