31406060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{439}}^1$

素因数の和:535

約数の個数: 72

約数和(自身を含む): 77948640

約数和(自身を除く): 46542580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 365, 439, 490, 511, 730, 878, 980, 1022, 1460, 1756, 2044, 2195, 2555, 3073, 3577, 4390, 5110, 6146, 7154, 8780, 10220, 12292, 14308, 15365, 17885, 21511, 30730, 32047, 35770, 43022, 61460, 64094, 71540, 86044, 107555, 128188, 160235, 215110, 224329, 320470, 430220, 448658, 640940, 897316, 1121645, 1570303, 2243290, 3140606, 4486580, 6281212, 7851515, 15703030, 31406060]

約数ペア:

[(1, 31406060), (2, 15703030), (4, 7851515), (5, 6281212), (7, 4486580), (10, 3140606), (14, 2243290), (20, 1570303), (28, 1121645), (35, 897316), (49, 640940), (70, 448658), (73, 430220), (98, 320470), (140, 224329), (146, 215110), (196, 160235), (245, 128188), (292, 107555), (365, 86044), (439, 71540), (490, 64094), (511, 61460), (730, 43022), (878, 35770), (980, 32047), (1022, 30730), (1460, 21511), (1756, 17885), (2044, 15365), (2195, 14308), (2555, 12292), (3073, 10220), (3577, 8780), (4390, 7154), (5110, 6146)]