20120640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{20959}}^1$

素因数の和:20979

約数の個数: 56

約数和(自身を含む): 63886080

約数和(自身を除く): 43765440

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, 160, 192, 240, 320, 480, 960, 20959, 41918, 62877, 83836, 104795, 125754, 167672, 209590, 251508, 314385, 335344, 419180, 503016, 628770, 670688, 838360, 1006032, 1257540, 1341376, 1676720, 2012064, 2515080, 3353440, 4024128, 5030160, 6706880, 10060320, 20120640]

約数ペア:

[(1, 20120640), (2, 10060320), (3, 6706880), (4, 5030160), (5, 4024128), (6, 3353440), (8, 2515080), (10, 2012064), (12, 1676720), (15, 1341376), (16, 1257540), (20, 1006032), (24, 838360), (30, 670688), (32, 628770), (40, 503016), (48, 419180), (60, 335344), (64, 314385), (80, 251508), (96, 209590), (120, 167672), (160, 125754), (192, 104795), (240, 83836), (320, 62877), (480, 41918), (960, 20959)]