20583328

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 43359624

約数和(自身を除く): 22776296

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 157, 241, 272, 314, 482, 544, 628, 964, 1256, 1928, 2512, 2669, 3856, 4097, 5024, 5338, 7712, 8194, 10676, 16388, 21352, 32776, 37837, 42704, 65552, 75674, 85408, 131104, 151348, 302696, 605392, 643229, 1210784, 1286458, 2572916, 5145832, 10291664, 20583328]

約数ペア:

[(1, 20583328), (2, 10291664), (4, 5145832), (8, 2572916), (16, 1286458), (17, 1210784), (32, 643229), (34, 605392), (68, 302696), (136, 151348), (157, 131104), (241, 85408), (272, 75674), (314, 65552), (482, 42704), (544, 37837), (628, 32776), (964, 21352), (1256, 16388), (1928, 10676), (2512, 8194), (2669, 7712), (3856, 5338), (4097, 5024)]