20137597220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{761}}^1\times {\mathrm{7829}}^1$

素因数の和:8625

約数の個数: 72

約数和(自身を含む): 45858211560

約数和(自身を除く): 25720614340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 761, 845, 1522, 1690, 3044, 3380, 3805, 7610, 7829, 9893, 15220, 15658, 19786, 31316, 39145, 39572, 49465, 78290, 98930, 101777, 128609, 156580, 197860, 203554, 257218, 407108, 508885, 514436, 643045, 1017770, 1286090, 1323101, 2035540, 2572180, 2646202, 5292404, 5957869, 6615505, 11915738, 13231010, 23831476, 26462020, 29789345, 59578690, 77452297, 119157380, 154904594, 309809188, 387261485, 774522970, 1006879861, 1549045940, 2013759722, 4027519444, 5034399305, 10068798610, 20137597220]

約数ペア:

[(1, 20137597220), (2, 10068798610), (4, 5034399305), (5, 4027519444), (10, 2013759722), (13, 1549045940), (20, 1006879861), (26, 774522970), (52, 387261485), (65, 309809188), (130, 154904594), (169, 119157380), (260, 77452297), (338, 59578690), (676, 29789345), (761, 26462020), (845, 23831476), (1522, 13231010), (1690, 11915738), (3044, 6615505), (3380, 5957869), (3805, 5292404), (7610, 2646202), (7829, 2572180), (9893, 2035540), (15220, 1323101), (15658, 1286090), (19786, 1017770), (31316, 643045), (39145, 514436), (39572, 508885), (49465, 407108), (78290, 257218), (98930, 203554), (101777, 197860), (128609, 156580)]