1638704

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:165

約数の個数: 40

約数和(自身を含む): 3413472

約数和(自身を除く): 1774768

約数列:

[1, 2, 4, 8, 16, 23, 46, 61, 73, 92, 122, 146, 184, 244, 292, 368, 488, 584, 976, 1168, 1403, 1679, 2806, 3358, 4453, 5612, 6716, 8906, 11224, 13432, 17812, 22448, 26864, 35624, 71248, 102419, 204838, 409676, 819352, 1638704]

約数ペア:

[(1, 1638704), (2, 819352), (4, 409676), (8, 204838), (16, 102419), (23, 71248), (46, 35624), (61, 26864), (73, 22448), (92, 17812), (122, 13432), (146, 11224), (184, 8906), (244, 6716), (292, 5612), (368, 4453), (488, 3358), (584, 2806), (976, 1679), (1168, 1403)]