55405420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{1061}}^1$

素因数の和:1450

約数の個数: 48

約数和(自身を含む): 133455168

約数和(自身を除く): 78049748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 373, 746, 1061, 1492, 1865, 2122, 2611, 3730, 4244, 5222, 5305, 7427, 7460, 10444, 10610, 13055, 14854, 21220, 26110, 29708, 37135, 52220, 74270, 148540, 395753, 791506, 1583012, 1978765, 2770271, 3957530, 5540542, 7915060, 11081084, 13851355, 27702710, 55405420]

約数ペア:

[(1, 55405420), (2, 27702710), (4, 13851355), (5, 11081084), (7, 7915060), (10, 5540542), (14, 3957530), (20, 2770271), (28, 1978765), (35, 1583012), (70, 791506), (140, 395753), (373, 148540), (746, 74270), (1061, 52220), (1492, 37135), (1865, 29708), (2122, 26110), (2611, 21220), (3730, 14854), (4244, 13055), (5222, 10610), (5305, 10444), (7427, 7460)]