20365345

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{313}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 33098112

約数和(自身を除く): 12732767

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 169, 313, 385, 455, 715, 845, 1001, 1183, 1565, 1859, 2191, 3443, 4069, 5005, 5915, 9295, 10955, 13013, 17215, 20345, 24101, 28483, 44759, 52897, 65065, 120505, 142415, 223795, 264485, 313313, 370279, 581867, 1566565, 1851395, 2909335, 4073069, 20365345]

約数ペア:

[(1, 20365345), (5, 4073069), (7, 2909335), (11, 1851395), (13, 1566565), (35, 581867), (55, 370279), (65, 313313), (77, 264485), (91, 223795), (143, 142415), (169, 120505), (313, 65065), (385, 52897), (455, 44759), (715, 28483), (845, 24101), (1001, 20345), (1183, 17215), (1565, 13013), (1859, 10955), (2191, 9295), (3443, 5915), (4069, 5005)]