20423790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{883}}^1$

素因数の和:1153

約数の個数: 48

約数和(自身を含む): 53368848

約数和(自身を除く): 32945058

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 257, 514, 771, 883, 1285, 1542, 1766, 2313, 2570, 2649, 3855, 4415, 4626, 5298, 7710, 7947, 8830, 11565, 13245, 15894, 23130, 26490, 39735, 79470, 226931, 453862, 680793, 1134655, 1361586, 2042379, 2269310, 3403965, 4084758, 6807930, 10211895, 20423790]

約数ペア:

[(1, 20423790), (2, 10211895), (3, 6807930), (5, 4084758), (6, 3403965), (9, 2269310), (10, 2042379), (15, 1361586), (18, 1134655), (30, 680793), (45, 453862), (90, 226931), (257, 79470), (514, 39735), (771, 26490), (883, 23130), (1285, 15894), (1542, 13245), (1766, 11565), (2313, 8830), (2570, 7947), (2649, 7710), (3855, 5298), (4415, 4626)]