20661688

素因数分解:

$2^3\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 41703480

約数和(自身を除く): 21041792

約数列:

[1, 2, 4, 8, 29, 37, 58, 74, 83, 116, 148, 166, 232, 296, 332, 664, 841, 1073, 1682, 2146, 2407, 3071, 3364, 4292, 4814, 6142, 6728, 8584, 9628, 12284, 19256, 24568, 31117, 62234, 69803, 89059, 124468, 139606, 178118, 248936, 279212, 356236, 558424, 712472, 2582711, 5165422, 10330844, 20661688]

約数ペア:

[(1, 20661688), (2, 10330844), (4, 5165422), (8, 2582711), (29, 712472), (37, 558424), (58, 356236), (74, 279212), (83, 248936), (116, 178118), (148, 139606), (166, 124468), (232, 89059), (296, 69803), (332, 62234), (664, 31117), (841, 24568), (1073, 19256), (1682, 12284), (2146, 9628), (2407, 8584), (3071, 6728), (3364, 6142), (4292, 4814)]