20809911616

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1471289}}^1$

素因数の和:1471331

約数の個数: 56

約数和(自身を含む): 47087165160

約数和(自身を除く): 26277253544

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1768, 3536, 7072, 14144, 1471289, 2942578, 5885156, 11770312, 19126757, 23540624, 25011913, 38253514, 47081248, 50023826, 76507028, 94162496, 100047652, 153014056, 200095304, 306028112, 325154869, 400190608, 612056224, 650309738, 800381216, 1224112448, 1300619476, 1600762432, 2601238952, 5202477904, 10404955808, 20809911616]

約数ペア:

[(1, 20809911616), (2, 10404955808), (4, 5202477904), (8, 2601238952), (13, 1600762432), (16, 1300619476), (17, 1224112448), (26, 800381216), (32, 650309738), (34, 612056224), (52, 400190608), (64, 325154869), (68, 306028112), (104, 200095304), (136, 153014056), (208, 100047652), (221, 94162496), (272, 76507028), (416, 50023826), (442, 47081248), (544, 38253514), (832, 25011913), (884, 23540624), (1088, 19126757), (1768, 11770312), (3536, 5885156), (7072, 2942578), (14144, 1471289)]