18604816

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 37497600

約数和(自身を除く): 18892784

約数列:

[1, 2, 4, 8, 16, 41, 79, 82, 158, 164, 316, 328, 359, 632, 656, 718, 1264, 1436, 2872, 3239, 5744, 6478, 12956, 14719, 25912, 28361, 29438, 51824, 56722, 58876, 113444, 117752, 226888, 235504, 453776, 1162801, 2325602, 4651204, 9302408, 18604816]

約数ペア:

[(1, 18604816), (2, 9302408), (4, 4651204), (8, 2325602), (16, 1162801), (41, 453776), (79, 235504), (82, 226888), (158, 117752), (164, 113444), (316, 58876), (328, 56722), (359, 51824), (632, 29438), (656, 28361), (718, 25912), (1264, 14719), (1436, 12956), (2872, 6478), (3239, 5744)]