2987380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 7047936

約数和(自身を除く): 4060556

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 367, 370, 407, 734, 740, 814, 1468, 1628, 1835, 2035, 3670, 4037, 4070, 7340, 8074, 8140, 13579, 16148, 20185, 27158, 40370, 54316, 67895, 80740, 135790, 149369, 271580, 298738, 597476, 746845, 1493690, 2987380]

約数ペア:

[(1, 2987380), (2, 1493690), (4, 746845), (5, 597476), (10, 298738), (11, 271580), (20, 149369), (22, 135790), (37, 80740), (44, 67895), (55, 54316), (74, 40370), (110, 27158), (148, 20185), (185, 16148), (220, 13579), (367, 8140), (370, 8074), (407, 7340), (734, 4070), (740, 4037), (814, 3670), (1468, 2035), (1628, 1835)]