16680560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:442

約数の個数: 80

約数和(自身を含む): 42851424

約数和(自身を除く): 26170864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 373, 430, 520, 559, 688, 746, 860, 1040, 1118, 1492, 1720, 1865, 2236, 2795, 2984, 3440, 3730, 4472, 4849, 5590, 5968, 7460, 8944, 9698, 11180, 14920, 16039, 19396, 22360, 24245, 29840, 32078, 38792, 44720, 48490, 64156, 77584, 80195, 96980, 128312, 160390, 193960, 208507, 256624, 320780, 387920, 417014, 641560, 834028, 1042535, 1283120, 1668056, 2085070, 3336112, 4170140, 8340280, 16680560]

約数ペア:

[(1, 16680560), (2, 8340280), (4, 4170140), (5, 3336112), (8, 2085070), (10, 1668056), (13, 1283120), (16, 1042535), (20, 834028), (26, 641560), (40, 417014), (43, 387920), (52, 320780), (65, 256624), (80, 208507), (86, 193960), (104, 160390), (130, 128312), (172, 96980), (208, 80195), (215, 77584), (260, 64156), (344, 48490), (373, 44720), (430, 38792), (520, 32078), (559, 29840), (688, 24245), (746, 22360), (860, 19396), (1040, 16039), (1118, 14920), (1492, 11180), (1720, 9698), (1865, 8944), (2236, 7460), (2795, 5968), (2984, 5590), (3440, 4849), (3730, 4472)]