20882176

素因数分解:

$2^8\times 7^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 48925184

約数和(自身を除く): 28043008

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 256, 271, 301, 344, 448, 542, 602, 688, 896, 1084, 1204, 1376, 1792, 1897, 2168, 2408, 2752, 3794, 4336, 4816, 5504, 7588, 8672, 9632, 11008, 11653, 15176, 17344, 19264, 23306, 30352, 34688, 38528, 46612, 60704, 69376, 77056, 81571, 93224, 121408, 163142, 186448, 242816, 326284, 372896, 485632, 652568, 745792, 1305136, 1491584, 2610272, 2983168, 5220544, 10441088, 20882176]

約数ペア:

[(1, 20882176), (2, 10441088), (4, 5220544), (7, 2983168), (8, 2610272), (14, 1491584), (16, 1305136), (28, 745792), (32, 652568), (43, 485632), (56, 372896), (64, 326284), (86, 242816), (112, 186448), (128, 163142), (172, 121408), (224, 93224), (256, 81571), (271, 77056), (301, 69376), (344, 60704), (448, 46612), (542, 38528), (602, 34688), (688, 30352), (896, 23306), (1084, 19264), (1204, 17344), (1376, 15176), (1792, 11653), (1897, 11008), (2168, 9632), (2408, 8672), (2752, 7588), (3794, 5504), (4336, 4816)]