20533370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 44198784

約数和(自身を除く): 23665414

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 83, 110, 130, 143, 166, 173, 286, 346, 415, 715, 830, 865, 913, 1079, 1430, 1730, 1826, 1903, 2158, 2249, 3806, 4498, 4565, 5395, 9130, 9515, 10790, 11245, 11869, 14359, 19030, 22490, 23738, 24739, 28718, 49478, 59345, 71795, 118690, 123695, 143590, 157949, 186667, 247390, 315898, 373334, 789745, 933335, 1579490, 1866670, 2053337, 4106674, 10266685, 20533370]

約数ペア:

[(1, 20533370), (2, 10266685), (5, 4106674), (10, 2053337), (11, 1866670), (13, 1579490), (22, 933335), (26, 789745), (55, 373334), (65, 315898), (83, 247390), (110, 186667), (130, 157949), (143, 143590), (166, 123695), (173, 118690), (286, 71795), (346, 59345), (415, 49478), (715, 28718), (830, 24739), (865, 23738), (913, 22490), (1079, 19030), (1430, 14359), (1730, 11869), (1826, 11245), (1903, 10790), (2158, 9515), (2249, 9130), (3806, 5395), (4498, 4565)]