1809888920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{150323}}^1$

素因数の和:150384

約数の個数: 64

約数和(自身を含む): 4762264320

約数和(自身を除く): 2952375400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 12040, 150323, 300646, 601292, 751615, 1052261, 1202584, 1503230, 2104522, 3006460, 4209044, 5261305, 6012920, 6463889, 8418088, 10522610, 12927778, 21045220, 25855556, 32319445, 42090440, 45247223, 51711112, 64638890, 90494446, 129277780, 180988892, 226236115, 258555560, 361977784, 452472230, 904944460, 1809888920]

約数ペア:

[(1, 1809888920), (2, 904944460), (4, 452472230), (5, 361977784), (7, 258555560), (8, 226236115), (10, 180988892), (14, 129277780), (20, 90494446), (28, 64638890), (35, 51711112), (40, 45247223), (43, 42090440), (56, 32319445), (70, 25855556), (86, 21045220), (140, 12927778), (172, 10522610), (215, 8418088), (280, 6463889), (301, 6012920), (344, 5261305), (430, 4209044), (602, 3006460), (860, 2104522), (1204, 1503230), (1505, 1202584), (1720, 1052261), (2408, 751615), (3010, 601292), (6020, 300646), (12040, 150323)]