19458140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1117}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 44702112

約数和(自身を除く): 25243972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1117, 1340, 1742, 2234, 3484, 4355, 4468, 5585, 8710, 11170, 14521, 17420, 22340, 29042, 58084, 72605, 74839, 145210, 149678, 290420, 299356, 374195, 748390, 972907, 1496780, 1945814, 3891628, 4864535, 9729070, 19458140]

約数ペア:

[(1, 19458140), (2, 9729070), (4, 4864535), (5, 3891628), (10, 1945814), (13, 1496780), (20, 972907), (26, 748390), (52, 374195), (65, 299356), (67, 290420), (130, 149678), (134, 145210), (260, 74839), (268, 72605), (335, 58084), (670, 29042), (871, 22340), (1117, 17420), (1340, 14521), (1742, 11170), (2234, 8710), (3484, 5585), (4355, 4468)]