19959496

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 40616100

約数和(自身を除く): 20656604

約数列:

[1, 2, 4, 8, 17, 34, 68, 89, 97, 136, 178, 194, 289, 356, 388, 578, 712, 776, 1156, 1513, 1649, 2312, 3026, 3298, 6052, 6596, 8633, 12104, 13192, 17266, 25721, 28033, 34532, 51442, 56066, 69064, 102884, 112132, 146761, 205768, 224264, 293522, 587044, 1174088, 2494937, 4989874, 9979748, 19959496]

約数ペア:

[(1, 19959496), (2, 9979748), (4, 4989874), (8, 2494937), (17, 1174088), (34, 587044), (68, 293522), (89, 224264), (97, 205768), (136, 146761), (178, 112132), (194, 102884), (289, 69064), (356, 56066), (388, 51442), (578, 34532), (712, 28033), (776, 25721), (1156, 17266), (1513, 13192), (1649, 12104), (2312, 8633), (3026, 6596), (3298, 6052)]