12840072760

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3000017}}^1$

素因数の和:3000135

約数の個数: 32

約数和(自身を含む): 29160174960

約数和(自身を除く): 16320102200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 3000017, 6000034, 12000068, 15000085, 24000136, 30000170, 60000340, 120000680, 321001819, 642003638, 1284007276, 1605009095, 2568014552, 3210018190, 6420036380, 12840072760]

約数ペア:

[(1, 12840072760), (2, 6420036380), (4, 3210018190), (5, 2568014552), (8, 1605009095), (10, 1284007276), (20, 642003638), (40, 321001819), (107, 120000680), (214, 60000340), (428, 30000170), (535, 24000136), (856, 15000085), (1070, 12000068), (2140, 6000034), (4280, 3000017)]