20744624

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1439}}^1$

素因数の和:1517

約数の個数: 40

約数和(自身を含む): 43390080

約数和(自身を除く): 22645456

約数列:

[1, 2, 4, 8, 16, 17, 34, 53, 68, 106, 136, 212, 272, 424, 848, 901, 1439, 1802, 2878, 3604, 5756, 7208, 11512, 14416, 23024, 24463, 48926, 76267, 97852, 152534, 195704, 305068, 391408, 610136, 1220272, 1296539, 2593078, 5186156, 10372312, 20744624]

約数ペア:

[(1, 20744624), (2, 10372312), (4, 5186156), (8, 2593078), (16, 1296539), (17, 1220272), (34, 610136), (53, 391408), (68, 305068), (106, 195704), (136, 152534), (212, 97852), (272, 76267), (424, 48926), (848, 24463), (901, 23024), (1439, 14416), (1802, 11512), (2878, 7208), (3604, 5756)]