16691740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1493}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 38652768

約数和(自身を除く): 21961028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 1493, 2236, 2795, 2986, 5590, 5972, 7465, 11180, 14930, 19409, 29860, 38818, 64199, 77636, 97045, 128398, 194090, 256796, 320995, 388180, 641990, 834587, 1283980, 1669174, 3338348, 4172935, 8345870, 16691740]

約数ペア:

[(1, 16691740), (2, 8345870), (4, 4172935), (5, 3338348), (10, 1669174), (13, 1283980), (20, 834587), (26, 641990), (43, 388180), (52, 320995), (65, 256796), (86, 194090), (130, 128398), (172, 97045), (215, 77636), (260, 64199), (430, 38818), (559, 29860), (860, 19409), (1118, 14930), (1493, 11180), (2236, 7465), (2795, 5972), (2986, 5590)]