311404920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{863}}^1$

素因数の和:1005

約数の個数: 128

約数和(自身を含む): 975421440

約数和(自身を除く): 664016520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 97, 120, 124, 155, 186, 194, 248, 291, 310, 372, 388, 465, 485, 582, 620, 744, 776, 863, 930, 970, 1164, 1240, 1455, 1726, 1860, 1940, 2328, 2589, 2910, 3007, 3452, 3720, 3880, 4315, 5178, 5820, 6014, 6904, 8630, 9021, 10356, 11640, 12028, 12945, 15035, 17260, 18042, 20712, 24056, 25890, 26753, 30070, 34520, 36084, 45105, 51780, 53506, 60140, 72168, 80259, 83711, 90210, 103560, 107012, 120280, 133765, 160518, 167422, 180420, 214024, 251133, 267530, 321036, 334844, 360840, 401295, 418555, 502266, 535060, 642072, 669688, 802590, 837110, 1004532, 1070120, 1255665, 1605180, 1674220, 2009064, 2511330, 2595041, 3210360, 3348440, 5022660, 5190082, 7785123, 10045320, 10380164, 12975205, 15570246, 20760328, 25950410, 31140492, 38925615, 51900820, 62280984, 77851230, 103801640, 155702460, 311404920]

約数ペア:

[(1, 311404920), (2, 155702460), (3, 103801640), (4, 77851230), (5, 62280984), (6, 51900820), (8, 38925615), (10, 31140492), (12, 25950410), (15, 20760328), (20, 15570246), (24, 12975205), (30, 10380164), (31, 10045320), (40, 7785123), (60, 5190082), (62, 5022660), (93, 3348440), (97, 3210360), (120, 2595041), (124, 2511330), (155, 2009064), (186, 1674220), (194, 1605180), (248, 1255665), (291, 1070120), (310, 1004532), (372, 837110), (388, 802590), (465, 669688), (485, 642072), (582, 535060), (620, 502266), (744, 418555), (776, 401295), (863, 360840), (930, 334844), (970, 321036), (1164, 267530), (1240, 251133), (1455, 214024), (1726, 180420), (1860, 167422), (1940, 160518), (2328, 133765), (2589, 120280), (2910, 107012), (3007, 103560), (3452, 90210), (3720, 83711), (3880, 80259), (4315, 72168), (5178, 60140), (5820, 53506), (6014, 51780), (6904, 45105), (8630, 36084), (9021, 34520), (10356, 30070), (11640, 26753), (12028, 25890), (12945, 24056), (15035, 20712), (17260, 18042)]