28075240840

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{997}}^1\times {\mathrm{2089}}^1$

素因数の和:3434

約数の個数: 64

約数和(自身を含む): 63450644400

約数和(自身を除く): 35375403560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 674, 997, 1348, 1685, 1994, 2089, 2696, 3370, 3988, 4178, 4985, 6740, 7976, 8356, 9970, 10445, 13480, 16712, 19940, 20890, 39880, 41780, 83560, 335989, 671978, 703993, 1343956, 1407986, 1679945, 2082733, 2687912, 2815972, 3359890, 3519965, 4165466, 5631944, 6719780, 7039930, 8330932, 10413665, 13439560, 14079860, 16661864, 20827330, 28159720, 41654660, 83309320, 701881021, 1403762042, 2807524084, 3509405105, 5615048168, 7018810210, 14037620420, 28075240840]

約数ペア:

[(1, 28075240840), (2, 14037620420), (4, 7018810210), (5, 5615048168), (8, 3509405105), (10, 2807524084), (20, 1403762042), (40, 701881021), (337, 83309320), (674, 41654660), (997, 28159720), (1348, 20827330), (1685, 16661864), (1994, 14079860), (2089, 13439560), (2696, 10413665), (3370, 8330932), (3988, 7039930), (4178, 6719780), (4985, 5631944), (6740, 4165466), (7976, 3519965), (8356, 3359890), (9970, 2815972), (10445, 2687912), (13480, 2082733), (16712, 1679945), (19940, 1407986), (20890, 1343956), (39880, 703993), (41780, 671978), (83560, 335989)]