2181545680

素因数分解:

$2^4\times 5^1\times {\mathrm{1117}}^1\times {\mathrm{24413}}^1$

素因数の和:25543

約数の個数: 40

約数和(自身を含む): 5076842472

約数和(自身を除く): 2895296792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1117, 2234, 4468, 5585, 8936, 11170, 17872, 22340, 24413, 44680, 48826, 89360, 97652, 122065, 195304, 244130, 390608, 488260, 976520, 1953040, 27269321, 54538642, 109077284, 136346605, 218154568, 272693210, 436309136, 545386420, 1090772840, 2181545680]

約数ペア:

[(1, 2181545680), (2, 1090772840), (4, 545386420), (5, 436309136), (8, 272693210), (10, 218154568), (16, 136346605), (20, 109077284), (40, 54538642), (80, 27269321), (1117, 1953040), (2234, 976520), (4468, 488260), (5585, 390608), (8936, 244130), (11170, 195304), (17872, 122065), (22340, 97652), (24413, 89360), (44680, 48826)]