19640830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 21416450

約数列:

[1, 2, 5, 10, 11, 22, 29, 47, 55, 58, 94, 110, 131, 145, 235, 262, 290, 319, 470, 517, 638, 655, 1034, 1310, 1363, 1441, 1595, 2585, 2726, 2882, 3190, 3799, 5170, 6157, 6815, 7205, 7598, 12314, 13630, 14410, 14993, 18995, 29986, 30785, 37990, 41789, 61570, 67727, 74965, 83578, 135454, 149930, 178553, 208945, 338635, 357106, 417890, 677270, 892765, 1785530, 1964083, 3928166, 9820415, 19640830]

約数ペア:

[(1, 19640830), (2, 9820415), (5, 3928166), (10, 1964083), (11, 1785530), (22, 892765), (29, 677270), (47, 417890), (55, 357106), (58, 338635), (94, 208945), (110, 178553), (131, 149930), (145, 135454), (235, 83578), (262, 74965), (290, 67727), (319, 61570), (470, 41789), (517, 37990), (638, 30785), (655, 29986), (1034, 18995), (1310, 14993), (1363, 14410), (1441, 13630), (1595, 12314), (2585, 7598), (2726, 7205), (2882, 6815), (3190, 6157), (3799, 5170)]