12780950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2$

素因数の和:138

約数の個数: 72

約数和(自身を含む): 29821008

約数和(自身を除く): 17040058

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 53, 65, 70, 91, 106, 130, 175, 182, 265, 325, 350, 371, 455, 530, 650, 689, 742, 910, 1325, 1378, 1855, 2275, 2650, 2809, 3445, 3710, 4550, 4823, 5618, 6890, 9275, 9646, 14045, 17225, 18550, 19663, 24115, 28090, 34450, 36517, 39326, 48230, 70225, 73034, 98315, 120575, 140450, 182585, 196630, 241150, 255619, 365170, 491575, 511238, 912925, 983150, 1278095, 1825850, 2556190, 6390475, 12780950]

約数ペア:

[(1, 12780950), (2, 6390475), (5, 2556190), (7, 1825850), (10, 1278095), (13, 983150), (14, 912925), (25, 511238), (26, 491575), (35, 365170), (50, 255619), (53, 241150), (65, 196630), (70, 182585), (91, 140450), (106, 120575), (130, 98315), (175, 73034), (182, 70225), (265, 48230), (325, 39326), (350, 36517), (371, 34450), (455, 28090), (530, 24115), (650, 19663), (689, 18550), (742, 17225), (910, 14045), (1325, 9646), (1378, 9275), (1855, 6890), (2275, 5618), (2650, 4823), (2809, 4550), (3445, 3710)]