20010431525

素因数分解:

$5^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{509}}^1\times {\mathrm{811}}^1$

素因数の和:1614

約数の個数: 48

約数和(自身を含む): 28551089280

約数和(自身を除く): 8540657755

約数列:

[1, 5, 7, 25, 35, 175, 277, 509, 811, 1385, 1939, 2545, 3563, 4055, 5677, 6925, 9695, 12725, 17815, 20275, 28385, 48475, 89075, 140993, 141925, 224647, 412799, 704965, 986951, 1123235, 1572529, 2063995, 2889593, 3524825, 4934755, 5616175, 7862645, 10319975, 14447965, 24673775, 39313225, 72239825, 114345323, 571726615, 800417261, 2858633075, 4002086305, 20010431525]

約数ペア:

[(1, 20010431525), (5, 4002086305), (7, 2858633075), (25, 800417261), (35, 571726615), (175, 114345323), (277, 72239825), (509, 39313225), (811, 24673775), (1385, 14447965), (1939, 10319975), (2545, 7862645), (3563, 5616175), (4055, 4934755), (5677, 3524825), (6925, 2889593), (9695, 2063995), (12725, 1572529), (17815, 1123235), (20275, 986951), (28385, 704965), (48475, 412799), (89075, 224647), (140993, 141925)]