201720320

素因数分解:

$2^9\times 5^1\times {\mathrm{78797}}^1$

素因数の和:78820

約数の個数: 40

約数和(自身を含む): 483662124

約数和(自身を除く): 281941804

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 78797, 157594, 315188, 393985, 630376, 787970, 1260752, 1575940, 2521504, 3151880, 5043008, 6303760, 10086016, 12607520, 20172032, 25215040, 40344064, 50430080, 100860160, 201720320]

約数ペア:

[(1, 201720320), (2, 100860160), (4, 50430080), (5, 40344064), (8, 25215040), (10, 20172032), (16, 12607520), (20, 10086016), (32, 6303760), (40, 5043008), (64, 3151880), (80, 2521504), (128, 1575940), (160, 1260752), (256, 787970), (320, 630376), (512, 393985), (640, 315188), (1280, 157594), (2560, 78797)]