289413080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{6781}}^1$

素因数の和:6900

約数の個数: 64

約数和(自身を含む): 717806880

約数和(自身を除く): 428393800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 194, 220, 388, 440, 485, 776, 970, 1067, 1940, 2134, 3880, 4268, 5335, 6781, 8536, 10670, 13562, 21340, 27124, 33905, 42680, 54248, 67810, 74591, 135620, 149182, 271240, 298364, 372955, 596728, 657757, 745910, 1315514, 1491820, 2631028, 2983640, 3288785, 5262056, 6577570, 7235327, 13155140, 14470654, 26310280, 28941308, 36176635, 57882616, 72353270, 144706540, 289413080]

約数ペア:

[(1, 289413080), (2, 144706540), (4, 72353270), (5, 57882616), (8, 36176635), (10, 28941308), (11, 26310280), (20, 14470654), (22, 13155140), (40, 7235327), (44, 6577570), (55, 5262056), (88, 3288785), (97, 2983640), (110, 2631028), (194, 1491820), (220, 1315514), (388, 745910), (440, 657757), (485, 596728), (776, 372955), (970, 298364), (1067, 271240), (1940, 149182), (2134, 135620), (3880, 74591), (4268, 67810), (5335, 54248), (6781, 42680), (8536, 33905), (10670, 27124), (13562, 21340)]