18680320

素因数分解:

$2^9\times 5^1\times {\mathrm{7297}}^1$

素因数の和:7320

約数の個数: 40

約数和(自身を含む): 44795124

約数和(自身を除く): 26114804

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7297, 14594, 29188, 36485, 58376, 72970, 116752, 145940, 233504, 291880, 467008, 583760, 934016, 1167520, 1868032, 2335040, 3736064, 4670080, 9340160, 18680320]

約数ペア:

[(1, 18680320), (2, 9340160), (4, 4670080), (5, 3736064), (8, 2335040), (10, 1868032), (16, 1167520), (20, 934016), (32, 583760), (40, 467008), (64, 291880), (80, 233504), (128, 145940), (160, 116752), (256, 72970), (320, 58376), (512, 36485), (640, 29188), (1280, 14594), (2560, 7297)]