20505936

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:640

約数の個数: 80

約数和(自身を含む): 58710528

約数和(自身を除く): 38204592

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 71, 88, 132, 142, 176, 213, 264, 284, 426, 528, 547, 568, 781, 852, 1094, 1136, 1562, 1641, 1704, 2188, 2343, 3124, 3282, 3408, 4376, 4686, 6017, 6248, 6564, 8752, 9372, 12034, 12496, 13128, 18051, 18744, 24068, 26256, 36102, 37488, 38837, 48136, 72204, 77674, 96272, 116511, 144408, 155348, 233022, 288816, 310696, 427207, 466044, 621392, 854414, 932088, 1281621, 1708828, 1864176, 2563242, 3417656, 5126484, 6835312, 10252968, 20505936]

約数ペア:

[(1, 20505936), (2, 10252968), (3, 6835312), (4, 5126484), (6, 3417656), (8, 2563242), (11, 1864176), (12, 1708828), (16, 1281621), (22, 932088), (24, 854414), (33, 621392), (44, 466044), (48, 427207), (66, 310696), (71, 288816), (88, 233022), (132, 155348), (142, 144408), (176, 116511), (213, 96272), (264, 77674), (284, 72204), (426, 48136), (528, 38837), (547, 37488), (568, 36102), (781, 26256), (852, 24068), (1094, 18744), (1136, 18051), (1562, 13128), (1641, 12496), (1704, 12034), (2188, 9372), (2343, 8752), (3124, 6564), (3282, 6248), (3408, 6017), (4376, 4686)]