20565577990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{953}}^1\times {\mathrm{24247}}^1$

素因数の和:25296

約数の個数: 32

約数和(自身を含む): 37474799040

約数和(自身を除く): 16909221050

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 953, 1906, 4765, 9530, 24247, 48494, 84817, 121235, 169634, 242470, 424085, 848170, 2157983, 4315966, 10789915, 21579830, 23107391, 46214782, 115536955, 231073910, 2056557799, 4113115598, 10282788995, 20565577990]

約数ペア:

[(1, 20565577990), (2, 10282788995), (5, 4113115598), (10, 2056557799), (89, 231073910), (178, 115536955), (445, 46214782), (890, 23107391), (953, 21579830), (1906, 10789915), (4765, 4315966), (9530, 2157983), (24247, 848170), (48494, 424085), (84817, 242470), (121235, 169634)]