291258940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{439}}^1\times {\mathrm{677}}^1$

素因数の和:1139

約数の個数: 72

約数和(自身を含む): 714178080

約数和(自身を除く): 422919140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 439, 490, 677, 878, 980, 1354, 1756, 2195, 2708, 3073, 3385, 4390, 4739, 6146, 6770, 8780, 9478, 12292, 13540, 15365, 18956, 21511, 23695, 30730, 33173, 43022, 47390, 61460, 66346, 86044, 94780, 107555, 132692, 165865, 215110, 297203, 331730, 430220, 594406, 663460, 1188812, 1486015, 2080421, 2972030, 4160842, 5944060, 8321684, 10402105, 14562947, 20804210, 29125894, 41608420, 58251788, 72814735, 145629470, 291258940]

約数ペア:

[(1, 291258940), (2, 145629470), (4, 72814735), (5, 58251788), (7, 41608420), (10, 29125894), (14, 20804210), (20, 14562947), (28, 10402105), (35, 8321684), (49, 5944060), (70, 4160842), (98, 2972030), (140, 2080421), (196, 1486015), (245, 1188812), (439, 663460), (490, 594406), (677, 430220), (878, 331730), (980, 297203), (1354, 215110), (1756, 165865), (2195, 132692), (2708, 107555), (3073, 94780), (3385, 86044), (4390, 66346), (4739, 61460), (6146, 47390), (6770, 43022), (8780, 33173), (9478, 30730), (12292, 23695), (13540, 21511), (15365, 18956)]