20417408

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{853}}^1$

素因数の和:895

約数の個数: 64

約数和(自身を含む): 47038320

約数和(自身を除く): 26620912

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 128, 136, 176, 187, 272, 352, 374, 544, 704, 748, 853, 1088, 1408, 1496, 1706, 2176, 2992, 3412, 5984, 6824, 9383, 11968, 13648, 14501, 18766, 23936, 27296, 29002, 37532, 54592, 58004, 75064, 109184, 116008, 150128, 159511, 232016, 300256, 319022, 464032, 600512, 638044, 928064, 1201024, 1276088, 1856128, 2552176, 5104352, 10208704, 20417408]

約数ペア:

[(1, 20417408), (2, 10208704), (4, 5104352), (8, 2552176), (11, 1856128), (16, 1276088), (17, 1201024), (22, 928064), (32, 638044), (34, 600512), (44, 464032), (64, 319022), (68, 300256), (88, 232016), (128, 159511), (136, 150128), (176, 116008), (187, 109184), (272, 75064), (352, 58004), (374, 54592), (544, 37532), (704, 29002), (748, 27296), (853, 23936), (1088, 18766), (1408, 14501), (1496, 13648), (1706, 11968), (2176, 9383), (2992, 6824), (3412, 5984)]