1644428

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 3038784

約数和(自身を除く): 1394356

約数列:

[1, 2, 4, 37, 41, 74, 82, 148, 164, 271, 542, 1084, 1517, 3034, 6068, 10027, 11111, 20054, 22222, 40108, 44444, 411107, 822214, 1644428]

約数ペア:

[(1, 1644428), (2, 822214), (4, 411107), (37, 44444), (41, 40108), (74, 22222), (82, 20054), (148, 11111), (164, 10027), (271, 6068), (542, 3034), (1084, 1517)]