20443040

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1907}}^1$

素因数の和:1989

約数の個数: 48

約数和(自身を含む): 49043232

約数和(自身を除く): 28600192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 1907, 2144, 2680, 3814, 5360, 7628, 9535, 10720, 15256, 19070, 30512, 38140, 61024, 76280, 127769, 152560, 255538, 305120, 511076, 638845, 1022152, 1277690, 2044304, 2555380, 4088608, 5110760, 10221520, 20443040]

約数ペア:

[(1, 20443040), (2, 10221520), (4, 5110760), (5, 4088608), (8, 2555380), (10, 2044304), (16, 1277690), (20, 1022152), (32, 638845), (40, 511076), (67, 305120), (80, 255538), (134, 152560), (160, 127769), (268, 76280), (335, 61024), (536, 38140), (670, 30512), (1072, 19070), (1340, 15256), (1907, 10720), (2144, 9535), (2680, 7628), (3814, 5360)]