20722364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 40727232

約数和(自身を除く): 20004868

約数列:

[1, 2, 4, 13, 26, 52, 53, 73, 103, 106, 146, 206, 212, 292, 412, 689, 949, 1339, 1378, 1898, 2678, 2756, 3796, 3869, 5356, 5459, 7519, 7738, 10918, 15038, 15476, 21836, 30076, 50297, 70967, 97747, 100594, 141934, 195494, 201188, 283868, 390988, 398507, 797014, 1594028, 5180591, 10361182, 20722364]

約数ペア:

[(1, 20722364), (2, 10361182), (4, 5180591), (13, 1594028), (26, 797014), (52, 398507), (53, 390988), (73, 283868), (103, 201188), (106, 195494), (146, 141934), (206, 100594), (212, 97747), (292, 70967), (412, 50297), (689, 30076), (949, 21836), (1339, 15476), (1378, 15038), (1898, 10918), (2678, 7738), (2756, 7519), (3796, 5459), (3869, 5356)]