90321280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{20161}}^1$

素因数の和:20187

約数の個数: 64

約数和(自身を含む): 246782880

約数和(自身を除く): 156461600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 20161, 40322, 80644, 100805, 141127, 161288, 201610, 282254, 322576, 403220, 564508, 645152, 705635, 806440, 1129016, 1290304, 1411270, 1612880, 2258032, 2580608, 2822540, 3225760, 4516064, 5645080, 6451520, 9032128, 11290160, 12903040, 18064256, 22580320, 45160640, 90321280]

約数ペア:

[(1, 90321280), (2, 45160640), (4, 22580320), (5, 18064256), (7, 12903040), (8, 11290160), (10, 9032128), (14, 6451520), (16, 5645080), (20, 4516064), (28, 3225760), (32, 2822540), (35, 2580608), (40, 2258032), (56, 1612880), (64, 1411270), (70, 1290304), (80, 1129016), (112, 806440), (128, 705635), (140, 645152), (160, 564508), (224, 403220), (280, 322576), (320, 282254), (448, 201610), (560, 161288), (640, 141127), (896, 100805), (1120, 80644), (2240, 40322), (4480, 20161)]