219339945

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^2$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 425984832

約数和(自身を除く): 206644887

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 71, 79, 99, 165, 213, 237, 355, 395, 495, 639, 711, 781, 869, 1065, 1185, 2343, 2607, 3195, 3555, 3905, 4345, 5609, 6241, 7029, 7821, 11715, 13035, 16827, 18723, 28045, 31205, 35145, 39105, 50481, 56169, 61699, 68651, 84135, 93615, 185097, 205953, 252405, 280845, 308495, 343255, 443111, 555291, 617859, 925485, 1029765, 1329333, 2215555, 2776455, 3089295, 3987999, 4874221, 6646665, 14622663, 19939995, 24371105, 43867989, 73113315, 219339945]

約数ペア:

[(1, 219339945), (3, 73113315), (5, 43867989), (9, 24371105), (11, 19939995), (15, 14622663), (33, 6646665), (45, 4874221), (55, 3987999), (71, 3089295), (79, 2776455), (99, 2215555), (165, 1329333), (213, 1029765), (237, 925485), (355, 617859), (395, 555291), (495, 443111), (639, 343255), (711, 308495), (781, 280845), (869, 252405), (1065, 205953), (1185, 185097), (2343, 93615), (2607, 84135), (3195, 68651), (3555, 61699), (3905, 56169), (4345, 50481), (5609, 39105), (6241, 35145), (7029, 31205), (7821, 28045), (11715, 18723), (13035, 16827)]