20815705528

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{347}}^1\times {\mathrm{70079}}^1$

素因数の和:70539

約数の個数: 32

約数和(自身を含む): 39508300800

約数和(自身を除く): 18692595272

約数列:

[1, 2, 4, 8, 107, 214, 347, 428, 694, 856, 1388, 2776, 37129, 70079, 74258, 140158, 148516, 280316, 297032, 560632, 7498453, 14996906, 24317413, 29993812, 48634826, 59987624, 97269652, 194539304, 2601963191, 5203926382, 10407852764, 20815705528]

約数ペア:

[(1, 20815705528), (2, 10407852764), (4, 5203926382), (8, 2601963191), (107, 194539304), (214, 97269652), (347, 59987624), (428, 48634826), (694, 29993812), (856, 24317413), (1388, 14996906), (2776, 7498453), (37129, 560632), (70079, 297032), (74258, 280316), (140158, 148516)]