20168917990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3209}}^1\times {\mathrm{3719}}^1$

素因数の和:6961

約数の個数: 48

約数和(自身を含む): 39334312800

約数和(自身を除く): 19165394810

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 3209, 3719, 6418, 7438, 16045, 18595, 32090, 37190, 41717, 48347, 83434, 96694, 208585, 241735, 417170, 483470, 542321, 628511, 1084642, 1257022, 2711605, 3142555, 5423210, 6285110, 11934271, 23868542, 59671355, 119342710, 155145523, 310291046, 775727615, 1551455230, 2016891799, 4033783598, 10084458995, 20168917990]

約数ペア:

[(1, 20168917990), (2, 10084458995), (5, 4033783598), (10, 2016891799), (13, 1551455230), (26, 775727615), (65, 310291046), (130, 155145523), (169, 119342710), (338, 59671355), (845, 23868542), (1690, 11934271), (3209, 6285110), (3719, 5423210), (6418, 3142555), (7438, 2711605), (16045, 1257022), (18595, 1084642), (32090, 628511), (37190, 542321), (41717, 483470), (48347, 417170), (83434, 241735), (96694, 208585)]