20770912

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:431

約数の個数: 48

約数和(自身を含む): 42919632

約数和(自身を除く): 22148720

約数列:

[1, 2, 4, 8, 16, 32, 37, 53, 74, 106, 148, 212, 296, 331, 424, 592, 662, 848, 1184, 1324, 1696, 1961, 2648, 3922, 5296, 7844, 10592, 12247, 15688, 17543, 24494, 31376, 35086, 48988, 62752, 70172, 97976, 140344, 195952, 280688, 391904, 561376, 649091, 1298182, 2596364, 5192728, 10385456, 20770912]

約数ペア:

[(1, 20770912), (2, 10385456), (4, 5192728), (8, 2596364), (16, 1298182), (32, 649091), (37, 561376), (53, 391904), (74, 280688), (106, 195952), (148, 140344), (212, 97976), (296, 70172), (331, 62752), (424, 48988), (592, 35086), (662, 31376), (848, 24494), (1184, 17543), (1324, 15688), (1696, 12247), (1961, 10592), (2648, 7844), (3922, 5296)]