20512406068

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{24841}}^1$

素因数の和:25253

約数の個数: 72

約数和(自身を含む): 45674302464

約数和(自身を除く): 25161896396

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 383, 539, 766, 1078, 1532, 2156, 2681, 4213, 5362, 8426, 10724, 16852, 18767, 24841, 29491, 37534, 49682, 58982, 75068, 99364, 117964, 173887, 206437, 273251, 347774, 412874, 546502, 695548, 825748, 1093004, 1217209, 1912757, 2434418, 3825514, 4868836, 7651028, 9514103, 13389299, 19028206, 26778598, 38056412, 53557196, 66598721, 104655133, 133197442, 209310266, 266394884, 418620532, 466191047, 732585931, 932382094, 1465171862, 1864764188, 2930343724, 5128101517, 10256203034, 20512406068]

約数ペア:

[(1, 20512406068), (2, 10256203034), (4, 5128101517), (7, 2930343724), (11, 1864764188), (14, 1465171862), (22, 932382094), (28, 732585931), (44, 466191047), (49, 418620532), (77, 266394884), (98, 209310266), (154, 133197442), (196, 104655133), (308, 66598721), (383, 53557196), (539, 38056412), (766, 26778598), (1078, 19028206), (1532, 13389299), (2156, 9514103), (2681, 7651028), (4213, 4868836), (5362, 3825514), (8426, 2434418), (10724, 1912757), (16852, 1217209), (18767, 1093004), (24841, 825748), (29491, 695548), (37534, 546502), (49682, 412874), (58982, 347774), (75068, 273251), (99364, 206437), (117964, 173887)]