173227780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{1217}}^1$

素因数の和:1884

約数の個数: 48

約数和(自身を含む): 397789056

約数和(自身を除く): 224561276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 647, 1217, 1294, 2434, 2588, 3235, 4868, 6085, 6470, 7117, 12170, 12940, 13387, 14234, 24340, 26774, 28468, 35585, 53548, 66935, 71170, 133870, 142340, 267740, 787399, 1574798, 3149596, 3936995, 7873990, 8661389, 15747980, 17322778, 34645556, 43306945, 86613890, 173227780]

約数ペア:

[(1, 173227780), (2, 86613890), (4, 43306945), (5, 34645556), (10, 17322778), (11, 15747980), (20, 8661389), (22, 7873990), (44, 3936995), (55, 3149596), (110, 1574798), (220, 787399), (647, 267740), (1217, 142340), (1294, 133870), (2434, 71170), (2588, 66935), (3235, 53548), (4868, 35585), (6085, 28468), (6470, 26774), (7117, 24340), (12170, 14234), (12940, 13387)]