20163225880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{402299}}^1$

素因数の和:402496

約数の個数: 64

約数和(自身を含む): 52138080000

約数和(自身を除く): 31974854120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 179, 280, 358, 716, 895, 1253, 1432, 1790, 2506, 3580, 5012, 6265, 7160, 10024, 12530, 25060, 50120, 402299, 804598, 1609196, 2011495, 2816093, 3218392, 4022990, 5632186, 8045980, 11264372, 14080465, 16091960, 22528744, 28160930, 56321860, 72011521, 112643720, 144023042, 288046084, 360057605, 504080647, 576092168, 720115210, 1008161294, 1440230420, 2016322588, 2520403235, 2880460840, 4032645176, 5040806470, 10081612940, 20163225880]

約数ペア:

[(1, 20163225880), (2, 10081612940), (4, 5040806470), (5, 4032645176), (7, 2880460840), (8, 2520403235), (10, 2016322588), (14, 1440230420), (20, 1008161294), (28, 720115210), (35, 576092168), (40, 504080647), (56, 360057605), (70, 288046084), (140, 144023042), (179, 112643720), (280, 72011521), (358, 56321860), (716, 28160930), (895, 22528744), (1253, 16091960), (1432, 14080465), (1790, 11264372), (2506, 8045980), (3580, 5632186), (5012, 4022990), (6265, 3218392), (7160, 2816093), (10024, 2011495), (12530, 1609196), (25060, 804598), (50120, 402299)]