919785860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{727}}^1\times {\mathrm{1291}}^1$

素因数の和:2041

約数の個数: 72

約数和(自身を含む): 2251738944

約数和(自身を除く): 1331953084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 727, 980, 1291, 1454, 2582, 2908, 3635, 5089, 5164, 6455, 7270, 9037, 10178, 12910, 14540, 18074, 20356, 25445, 25820, 35623, 36148, 45185, 50890, 63259, 71246, 90370, 101780, 126518, 142492, 178115, 180740, 253036, 316295, 356230, 632590, 712460, 938557, 1265180, 1877114, 3754228, 4692785, 6569899, 9385570, 13139798, 18771140, 26279596, 32849495, 45989293, 65698990, 91978586, 131397980, 183957172, 229946465, 459892930, 919785860]

約数ペア:

[(1, 919785860), (2, 459892930), (4, 229946465), (5, 183957172), (7, 131397980), (10, 91978586), (14, 65698990), (20, 45989293), (28, 32849495), (35, 26279596), (49, 18771140), (70, 13139798), (98, 9385570), (140, 6569899), (196, 4692785), (245, 3754228), (490, 1877114), (727, 1265180), (980, 938557), (1291, 712460), (1454, 632590), (2582, 356230), (2908, 316295), (3635, 253036), (5089, 180740), (5164, 178115), (6455, 142492), (7270, 126518), (9037, 101780), (10178, 90370), (12910, 71246), (14540, 63259), (18074, 50890), (20356, 45185), (25445, 36148), (25820, 35623)]